{"title":"Model Rocket Engines","description":null,"products":[{"product_id":"est10011","title":"1\/2A3-2T 13mm Engines for Model Rockets (4) (EST10011)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes 1\/2A3-2T is a compact 13 mm single-stage model rocket engine designed for lightweight mini rockets. Its quick thrust profile and two-second delay make it well suited for small models that need a fast launch followed by a short coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes four 1\/2A3-2T engines, four starters, and four starter plugs, providing the essential engine and ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe 1\/2A3-2T delivers a total impulse of 1.25 N-sec with a maximum thrust of 8.30 Newtons or 1.9 pounds. Its thrust duration is approximately 0.30 seconds, followed by a two-second delay before ejection. The engine is rated for rockets with a maximum lift weight of 2.0 ounces or 57 grams.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 1.75 inches or 4.4 centimeters long and has a 13 mm diameter. The engine weighs approximately 0.23 ounces or 6.5 grams and contains approximately 0.07 ounces or 1.9 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe 1\/2A3-2T is suitable for compatible lightweight mini rockets, including models such as the Mini Alpha, Mini Bertha, Mini Der Red Max, Mini Mod, and Mini Honest John. Its compact size and predictable performance make it a practical choice for educational projects, hobby launches, and small-field flying. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270391967796,"sku":"EST10011","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10011_00001.webp?v=1788300126"},{"product_id":"est1788","title":"1\/2A3-4T 13mm Engines Educator Bulk Pack for Model Rockets (24) (EST1788)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes 1\/2A3-4T Engine Bulk Pack provides dependable power for lightweight mini model rockets and is well suited for classrooms, youth groups, clubs, and other group launch activities. The compact 13 mm engines combine a quick thrust profile with a four-second delay, making them a practical choice for compatible rockets designed for smaller fields and manageable flight altitudes.\u003c\/p\u003e\n\n\u003cp\u003eEach bulk pack includes twenty-four 1\/2A3-4T engines, thirty starters, twenty-four starter plugs, and seventy-five squares of recovery wadding. With supplies for up to twenty-four launches included in one package, the bulk format makes preparation easier for educational programs, organized events, and frequent flying sessions.\u003c\/p\u003e\n\n\u003cp\u003eThe 1\/2A3-4T delivers a total impulse of 1.25 N-sec with a maximum thrust of 8.30 Newtons or 1.9 pounds. Its thrust duration is approximately 0.30 seconds, followed by a four-second delay before ejection. The engine is rated for rockets with a maximum lift weight of 1.0 ounce or 28 grams.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 1.8 inches or 4.6 centimeters long and has a 13 mm diameter. The engine weighs approximately 0.23 ounces or 6.5 grams and contains approximately 0.07 ounces or 1.9 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe 1\/2A3-4T can be used with compatible mini-engine model rockets, including models such as the Star Hopper. Its compact size and consistent performance make the bulk pack especially useful for educational rocketry, group activities, club launches, and repeated flights. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270392000564,"sku":"EST1788","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST1788_00001.webp?v=1788300470"},{"product_id":"est10035","title":"1\/2A3-4T 13mm Engines for Model Rockets (4) (EST10035)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes 1\/2A3-4T is a compact 13 mm single-stage model rocket engine designed for lightweight rockets weighing up to 1.0 ounce or 28 grams. Its quick thrust profile and four-second delay make it well suited for smaller models that need a short burst of acceleration followed by a stable coast before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes four 1\/2A3-4T engines, four starters, and four starter plugs, providing the essential components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe 1\/2A3-4T delivers a total impulse of 1.25 N-sec with a maximum thrust of 8.30 Newtons or 1.9 pounds. Its thrust duration is approximately 0.30 seconds, followed by a four-second delay before ejection. This combination provides predictable performance for compatible lightweight mini rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 1.8 inches or 4.6 centimeters long and has a 13 mm diameter. The engine weighs approximately 0.23 ounces or 6.5 grams and contains approximately 0.07 ounces or 1.9 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe 1\/2A3-4T is a practical choice for hobby flying, educational projects, flight testing, and other applications using compatible mini-engine model rockets. Its compact size and consistent performance make it suitable for both beginning and experienced rocketeers. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270392033332,"sku":"EST10035","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10035_00001.webp?v=1788300650"},{"product_id":"est10010","title":"1\/4A3-3T 13mm Engines for Model Rockets (4) (EST10010)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes 1\/4A3-3T is a compact 13 mm single-stage model rocket engine designed for lightweight rockets weighing up to 1.0 ounce or 28 grams. Its gentle thrust profile and three-second delay make it well suited for training flights, educational projects, and small-model launches where predictable performance and easy recovery are important.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes four 1\/4A3-3T engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe 1\/4A3-3T delivers a total impulse of 0.625 N-sec with a maximum thrust of 4.90 Newtons or 1.1 pounds. Its thrust duration is approximately 0.25 seconds, followed by a three-second delay before ejection. This combination provides a brief, controlled boost followed by a short coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 1.75 inches or 4.4 centimeters long and has a 13 mm diameter. The engine weighs approximately 0.21 ounces or 6 grams and contains approximately 0.05 ounces or 1.3 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe 1\/4A3-3T is a practical choice for compatible mini model rockets, classroom activities, beginner flying, and lightweight custom builds. Its modest power and consistent performance make it especially useful for smaller rockets designed for lower-altitude flights. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270392426548,"sku":"EST10010","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10010_00001.webp?v=1788299053"},{"product_id":"est10015","title":"A10-3T 13mm Engines for Model Rockets (4) (EST10015)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes A10-3T is a compact 13 mm single-stage model rocket engine designed for lightweight rockets that benefit from strong acceleration and a short coast period. Its three-second delay makes it well suited for small, fast-flying models that reach altitude quickly before deploying their recovery systems.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes four A10-3T engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe A10-3T delivers a total impulse of 2.50 N-sec with a maximum thrust of 13.00 Newtons or 2.9 pounds. Its thrust duration is approximately 0.80 seconds, followed by a three-second delay before ejection. The engine is rated for rockets with a maximum lift weight of 3.0 ounces or 85 grams.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 1.8 inches or 4.6 centimeters long and has a 13 mm diameter. The engine weighs approximately 0.29 ounces or 8.2 grams and contains approximately 0.12 ounces or 3.5 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe A10-3T is a practical choice for compatible mini model rockets, test flights, educational projects, and hobby launches where compact size and dependable performance are important. Its strong thrust in a small format makes it suitable for both beginning and experienced rocketeers. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270401404980,"sku":"EST10015","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10015_00001.webp?v=1788455638"},{"product_id":"est10012","title":"A3-2T 13mm Engines for Model Rockets (4) (EST10012)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes A3-2T is a compact 13 mm single-stage model rocket engine designed for lightweight mini rockets. Its two-second delay provides a brief coast period after powered flight before recovery system deployment, making it well suited for small models that benefit from quick acceleration and predictable timing.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes four A3-2T engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe A3-2T delivers a total impulse of 2.50 N-sec with a maximum thrust of 6.80 Newtons or 1.5 pounds. Its thrust duration is approximately 0.60 seconds, followed by a two-second delay before ejection. The engine is rated for rockets with a maximum lift weight of 2.0 ounces or 57 grams.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 1.8 inches or 4.57 centimeters long and has a 13 mm diameter. The engine weighs approximately 0.27 ounces or 7.65 grams and contains approximately 0.12 ounces or 3.3 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe A3-2T can be used with compatible mini model rockets, including models such as the Star Hopper, Gnome, Firestreak, Gryphon, and Mini Honest John. Its compact size and consistent performance make it a practical choice for hobby launches, educational projects, and repeated flights with lightweight models. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270401437748,"sku":"EST10012","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10012_00001.webp?v=1788455779"},{"product_id":"est10013","title":"A3-4T 13mm Engines for Model Rockets (4) (EST10013)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes A3-4T is a compact 13 mm single-stage model rocket engine designed for lightweight rockets weighing up to 2.0 ounces or 57 grams. Its moderate thrust and four-second delay make it well suited for mini rockets that benefit from a longer coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes four A3-4T engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe A3-4T delivers a total impulse of 2.50 N-sec with a maximum thrust of 6.80 Newtons or 1.5 pounds. Its thrust duration is approximately 0.60 seconds, followed by a four-second delay before ejection. This combination provides predictable acceleration and timing for compatible lightweight models.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 1.8 inches or 4.6 centimeters long and has a 13 mm diameter. The engine weighs approximately 0.28 ounces or 7.9 grams and contains approximately 0.12 ounces or 3.3 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe A3-4T is a practical choice for compatible mini model rockets, hobby launches, educational projects, and repeated single-stage flights. Its compact size, balanced thrust, and consistent delay make it suitable for both beginning and experienced rocketeers. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270401470516,"sku":"EST10013","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10013_00001.webp?v=1788298799"},{"product_id":"est10058","title":"A3-4T 13mm Engines for Model Rockets (4) (EST10058)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes A3-4T Flight Pack is designed for lightweight model rockets that use 13 mm mini engines. The A3-4T provides a quick boost followed by a four-second delay, making it well suited for small, streamlined rockets that benefit from a short powered ascent and predictable recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach flight pack includes four A3-4T engines, four starters, four starter plugs, and twelve sheets of recovery wadding. The included components provide a convenient setup for multiple launches without requiring ignition and recovery supplies to be purchased separately.\u003c\/p\u003e\n\n\u003cp\u003eThe A3-4T delivers a total impulse of 2.50 N-sec with a maximum thrust of 6.80 Newtons or 1.5 pounds. Its thrust duration is approximately 0.60 seconds, followed by a four-second delay before ejection. The engine is rated for rockets with a maximum lift weight of 2.0 ounces or 57 grams.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 1.8 inches or 4.6 centimeters long and has a 13 mm diameter. The engine weighs approximately 0.28 ounces or 7.9 grams and contains approximately 0.12 ounces or 3.3 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe A3-4T Flight Pack is a practical choice for compatible mini-engine model rockets, educational projects, hobby launches, and repeated flights where compact size and consistent performance are important. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270401503284,"sku":"EST10058","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10058_00001.webp?v=1788299334"},{"product_id":"est1781","title":"A8-3 Standard Engines Educator Bulk Pack for Model Rockets (24) (EST1781)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes A8-3 Engine Bulk Pack is designed for lightweight single-stage model rockets weighing up to 3.0 ounces or 85 grams. Its steady thrust and three-second delay make it well suited for classroom programs, youth groups, clubs, and hobby launches where predictable flight performance is important.\u003c\/p\u003e\n\n\u003cp\u003eEach bulk pack includes twenty-four A8-3 engines, thirty starters, twenty-four starter plugs, and seventy-five squares of recovery wadding. With supplies for up to twenty-four launches included in one package, the bulk format helps simplify preparation for group activities and repeated flying sessions.\u003c\/p\u003e\n\n\u003cp\u003eThe A8-3 delivers a total impulse of 2.50 N-sec with a maximum thrust of 10.70 Newtons or 2.4 pounds. Its thrust duration is approximately 0.80 seconds, followed by a three-second delay before ejection. This combination provides a smooth boost, a short coast period, and dependable recovery system deployment for compatible models.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.55 ounces or 15.6 grams and contains approximately 0.14 ounces or 4.1 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe A8-3 can be used with compatible model rockets including the Alpha, Alpha III, Generic E2X, Wizard, and Viking. Its consistent performance and convenient bulk packaging make it a practical choice for educational rocketry, STEM activities, scout programs, community events, and other group launches. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270406582324,"sku":"EST1781","price":92.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST1781_00001.webp?v=1788470092"},{"product_id":"est10017","title":"A8-3 Standard Engines for Model Rockets (3) (EST10017)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes A8-3 is an 18 mm single-stage model rocket engine designed for lightweight rockets weighing up to 3.0 ounces or 85 grams. Its steady thrust and three-second delay provide a balanced flight profile that is well suited for beginner models, classroom demonstrations, youth group activities, and everyday hobby launches.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three A8-3 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe A8-3 delivers a total impulse of 2.50 N-sec with a maximum thrust of 10.70 Newtons or 2.4 pounds. Its thrust duration is approximately 0.80 seconds, followed by a three-second delay before ejection. This combination provides a smooth boost, a short coast period, and dependable recovery system deployment for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.55 ounces or 15.6 grams and contains approximately 0.14 ounces or 4.1 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe A8-3 is a practical choice for compatible standard-size model rockets and is suitable for educational rocketry, STEM programs, camps, clubs, and recreational flying. Its predictable performance makes it useful for both beginning and experienced rocketeers. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270406811700,"sku":"EST10017","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10017_00001.webp?v=1788470310"},{"product_id":"est10036","title":"A8-5 Standard Engines for Model Rockets (3) (EST10036)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes A8-5 is an 18 mm single-stage model rocket engine designed for lightweight rockets weighing up to 2.0 ounces or 57 grams. Its strong thrust and five-second delay make it well suited for models that benefit from a longer coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three A8-5 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe A8-5 delivers a total impulse of 2.50 N-sec with a maximum thrust of 10.70 Newtons or 2.4 pounds. Its thrust duration is approximately 0.80 seconds, followed by a five-second delay before ejection. This combination provides quick acceleration followed by an extended coast period for compatible lightweight rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.55 ounces or 15.6 grams and contains approximately 0.14 ounces or 4.1 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe A8-5 can be used with compatible standard-size model rockets in single-stage or suitable upper-stage applications. Its predictable performance and longer delay make it a practical choice for educational projects, club launches, and recreational flying. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270406877236,"sku":"EST10036","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10036_00001.webp?v=1788470559"},{"product_id":"est10046","title":"B6-0 Standard Engines for Model Rockets (3) (EST10046)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes B6-0 is an 18 mm booster engine designed specifically for two-stage model rockets. With no time delay, it provides a short, dependable burst of thrust for the lower stage and supports clean staging into a compatible upper-stage engine.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three B6-0 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe B6-0 delivers a total impulse of 5.00 N-sec with a maximum thrust of 12.10 Newtons or 2.7 pounds. Its thrust duration is approximately 0.80 seconds, and it has no time delay because it is intended for booster-stage use. The engine is rated for rockets with a maximum lift weight of 4.0 ounces or 113 grams.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.55 ounces or 15.6 grams and contains approximately 0.23 ounces or 6.5 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe B6-0 is a practical choice for compatible two-stage rockets that use standard 18 mm motor mounts. Its predictable thrust profile makes it suitable for hobby launches, club events, educational projects, and builders learning staged flight. Always verify the rocket manufacturer's recommended engine configuration and staging requirements before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270410842164,"sku":"EST10046","price":12.99,"currency_code":"USD","in_stock":true}]},{"product_id":"est10018","title":"B4-2 Standard Engines for Model Rockets (3) (EST10018)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes B4-2 is an 18 mm single-stage model rocket engine designed for lightweight rockets weighing up to 4.0 ounces or 113 grams. Its steady thrust and two-second delay make it well suited for models that need a dependable boost followed by a short coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three B4-2 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe B4-2 delivers a total impulse of 5.00 N-sec with a maximum thrust of 13.20 Newtons or 3.0 pounds. Its thrust duration is approximately 1.10 seconds, followed by a two-second delay before ejection. This combination provides predictable acceleration and recovery timing for compatible lightweight rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.66 ounces or 18.7 grams and contains approximately 0.27 ounces or 7.6 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe B4-2 is a practical choice for compatible model rockets used in classroom demonstrations, club launches, recreational flying, and other applications where consistent performance is important. Its balanced thrust profile makes it suitable for both beginning and experienced rocketeers. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270410973236,"sku":"EST10018","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10018_00001.webp?v=1788531710"},{"product_id":"est10019","title":"B4-4 Standard Engines for Model Rockets (3) (EST10019)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes B4-4 is an 18 mm single-stage model rocket engine designed for rockets weighing up to 3.5 ounces or 99 grams. Its moderate thrust and four-second delay make it well suited for small to mid-size models that benefit from a smooth boost followed by a balanced coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three B4-4 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe B4-4 delivers a total impulse of 5.00 N-sec with a maximum thrust of 13.20 Newtons or 3.0 pounds. Its thrust duration is approximately 1.10 seconds, followed by a four-second delay before ejection. This combination provides steady acceleration and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.68 ounces or 19.3 grams and contains approximately 0.27 ounces or 7.6 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe B4-4 is compatible with a wide range of suitable Estes model rockets, including models such as the Alpha, Wizard, Baby Bertha, Big Bertha, Viking, Generic E2X, Cadet, US Army Patriot, Mongoose, Dragonite, Hi-Flier, Athena, Phantom Blue, Bull Pup 12D, Crossfire ISX, Comanche-3, Nike-X, Corvette, Starship, and Space Corps Centurion. Its predictable performance makes it a practical choice for hobby launches, classroom demonstrations, STEM projects, and club flying. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270411071540,"sku":"EST10019","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10019.jpg?v=1788294594"},{"product_id":"est10037","title":"B6-6 Standard Engines for Model Rockets (3) (EST10037)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes B6-6 is an 18 mm model rocket engine designed for compatible upper-stage applications and lightweight single-stage rockets. Its six-second delay allows an extended coast period before recovery system deployment, making it well suited for models that benefit from longer climb times and higher-altitude flight profiles.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three B6-6 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe B6-6 delivers a total impulse of 5.00 N-sec with a maximum thrust of 12.10 Newtons or 2.7 pounds. Its thrust duration is approximately 0.80 seconds, followed by a six-second delay before ejection. The engine is rated for rockets with a maximum lift weight of 2.5 ounces or 71 grams.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.64 ounces or 18.1 grams and contains approximately 0.23 ounces or 6.5 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe B6-6 is a practical choice for compatible multi-stage rockets and lightweight single-stage models that require a longer delay before recovery deployment. Its predictable performance makes it suitable for hobby launches, altitude-focused flights, club events, and staged rocketry projects. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270411169844,"sku":"EST10037","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10037.jpg?v=1788294601"},{"product_id":"est1784","title":"B6-0\/B6-6 Standard Engines Educator Bulk Pack for Model Rockets (24) (EST1784)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes B6-0 \/ B6-6 Engine Bulk Pack provides a convenient combination for two-stage model rocket flights. The B6-0 booster engine has no delay, allowing the upper stage to ignite during staging, while the B6-6 engine features a six-second delay before ejection. This matched combination is well suited for hobbyists, families, clubs, school programs, and frequent launch events where consistent performance and convenient preparation are important.\u003c\/p\u003e\n\n\u003cp\u003eThis bulk pack includes twelve B6-0 engines, twelve B6-6 engines, thirty starters, twenty-four starter plugs, and seventy-five squares of recovery wadding. With key launch supplies packaged together, the set makes it easier to prepare multiple rockets for repeated flights without gathering each component separately.\u003c\/p\u003e\n\n\u003cp\u003eBoth the B6-0 and B6-6 engines have a total impulse of 5.00 N-sec, a maximum thrust of 12.10 Newtons or 2.7 pounds, and a thrust duration of approximately 0.80 seconds. The B6-0 has no time delay and supports a maximum lift weight of 4.0 ounces or 113 grams. The B6-6 has a six-second delay and supports a maximum lift weight of 2.5 ounces or 71 grams.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The B6-0 weighs approximately 0.55 ounces or 15.6 grams, while the B6-6 weighs approximately 0.64 ounces or 18.1 grams. Each engine contains approximately 0.23 ounces or 6.5 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe B6-0 \/ B6-6 combination can be used with compatible model rockets designed for these engine types, including models such as the Mongoose, Taser Twin, Solar Flare, Cosmic Cascade, Alpha, and other suitable rockets. Always verify the rocket manufacturer's recommended engine specifications before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270411235380,"sku":"EST1784","price":99.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/image_bd3c49c2-d799-4187-b286-783d79dabdad.jpg?v=1788294606"},{"product_id":"est10020","title":"B6-2 Standard Engines for Model Rockets (3) (EST10020)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes B6-2 is an 18 mm single-stage model rocket engine designed for rockets weighing up to 4.5 ounces or 127 grams. Its strong thrust and two-second delay make it well suited for models that benefit from quick acceleration followed by a short coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three B6-2 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe B6-2 delivers a total impulse of 5.00 N-sec with a maximum thrust of 12.10 Newtons or 2.7 pounds. Its thrust duration is approximately 0.80 seconds, followed by a two-second delay before ejection. This combination provides a quick boost and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.61 ounces or 17.3 grams and contains approximately 0.23 ounces or 6.5 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe B6-2 is a practical choice for compatible rockets that require a shorter delay before recovery deployment. Its predictable performance makes it suitable for recreational flying, educational projects, test launches, and repeated hobby flights. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270411366452,"sku":"EST10020","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10020_00001.webp?v=1788470670"},{"product_id":"est1672","title":"Blast Off Flight Pack with A8-3\/B6-4\/C6-3\/C6-5 Engines (6 Each)\/Ignitors(30)\/Plugs (24)\/Wadding (75) for Model Rockets (EST1672)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes Blast-Off Bulk Pack is a convenient assortment of popular model rocket engines designed to support a wide range of lightweight and standard-size rockets. With A, B, and C class engines included, the pack gives hobbyists, families, clubs, and educational programs multiple power and delay options for different flight profiles.\u003c\/p\u003e\n\n\u003cp\u003eEach bulk pack includes six A8-3 engines, six B6-4 engines, six C6-3 engines, six C6-5 engines, thirty starters, and seventy-five sheets of recovery wadding. This assortment provides twenty-four engines along with key launch supplies for repeated flying sessions.\u003c\/p\u003e\n\n\u003cp\u003eThe A8-3 engines are suited for lighter rockets and more moderate flights, while the B6-4 engines provide additional thrust and altitude for compatible models. The C6-3 and C6-5 engines offer higher-power options, with different delay times to accommodate rockets that require either shorter or longer coast periods before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eThe variety of engine classes and delay options makes the Blast-Off Bulk Pack a practical choice for rocketeers with multiple compatible rockets. It is especially useful for club launches, family flying, educational activities, and hobbyists who want a flexible engine assortment available for different models and launch conditions.\u003c\/p\u003e\n\n\u003cp\u003eAlways verify the rocket manufacturer's recommended engine configuration before use. Purchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270411825204,"sku":"EST1672","price":114.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST1672_ed9cdeff-5fc6-431d-9902-a3f8f7e923bc.jpg?v=1788294636"},{"product_id":"est10021","title":"B6-4 Standard Engines for Model Rockets (3) (EST10021)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes B6-4 is an 18 mm single-stage model rocket engine designed for rockets weighing up to 4.0 ounces or 113 grams. Its moderate thrust and four-second delay provide a balanced flight profile with a strong boost, a controlled coast period, and dependable recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three B6-4 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe B6-4 delivers a total impulse of 5.00 N-sec with a maximum thrust of 12.10 Newtons or 2.7 pounds. Its thrust duration is approximately 0.80 seconds, followed by a four-second delay before ejection. This combination makes it a versatile option for compatible lightweight and standard-size model rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.63 ounces or 17.9 grams and contains approximately 0.23 ounces or 6.5 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe B6-4 is a practical choice for beginner and intermediate rocketeers, educational launches, club events, STEM activities, and recreational flying. Its predictable performance makes it suitable for a wide range of compatible single-stage model rockets. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270411923508,"sku":"EST10021","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10021.jpg?v=1788294640"},{"product_id":"est1783","title":"B6-4 Standard Engines Educator Bulk Pack for Model Rockets (24) (EST1783)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes B6-4 Engine Bulk Pack provides dependable 18 mm single-stage power for model rockets weighing up to 4.0 ounces or 113 grams. Its balanced thrust and four-second delay make it a versatile choice for classroom programs, youth groups, clubs, and hobby launches where consistent flight performance is important.\u003c\/p\u003e\n\n\u003cp\u003eEach bulk pack includes twenty-four B6-4 engines, thirty starters, twenty-four starter plugs, and seventy-five squares of recovery wadding. With supplies for up to twenty-four launches included in one package, the bulk format helps simplify preparation for group activities and repeated flying sessions.\u003c\/p\u003e\n\n\u003cp\u003eThe B6-4 delivers a total impulse of 5.00 N-sec with a maximum thrust of 12.10 Newtons or 2.7 pounds. Its thrust duration is approximately 0.80 seconds, followed by a four-second delay before ejection. This combination provides a strong boost, a moderate coast period, and dependable recovery system deployment for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.63 ounces or 17.9 grams and contains approximately 0.23 ounces or 6.5 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe B6-4 can be used with compatible model rockets including the Generic E2X, Alpha III, Wizard, Viking, and Alpha. Its consistent performance and convenient bulk packaging make it a practical choice for educational rocketry, STEM activities, club events, and other group launches. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270413332532,"sku":"EST1783","price":76.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST1783_6c3c456b-79ce-4e28-aed9-46781fa69658.jpg?v=1788294653"},{"product_id":"est10039","title":"C11-7 Standard Engines for Model Rockets (2) (EST10039)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes C11-7 is a 24 mm single-stage model rocket engine designed for lightweight to mid-sized rockets weighing up to 4.0 ounces or 113 grams. Its strong thrust and seven-second delay make it well suited for streamlined models that benefit from an extended coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two C11-7 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe C11-7 delivers a total impulse of 10.00 N-sec with a maximum thrust of 22.10 Newtons or 4.9 pounds. Its thrust duration is approximately 0.80 seconds, followed by a seven-second delay before ejection. This combination provides a quick boost and a long coast phase for compatible rockets designed to take advantage of higher-altitude flight profiles.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.75 inches or 7 centimeters long and has a 24 mm diameter. The engine weighs approximately 1.19 ounces or 33.7 grams and contains approximately 0.44 ounces or 12.4 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe C11-7 is a practical choice for compatible mid-sized rockets, altitude-focused flights, and models that require a longer delay before recovery deployment. Its performance makes it suitable for advancing and experienced rocketeers seeking more power and coast time without moving to a D-class engine. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270414676020,"sku":"EST10039","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10039_00001.webp?v=1788532422"},{"product_id":"est10047","title":"C6-0 Standard Engines for Model Rockets (3) (EST10047)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes C6-0 is an 18 mm booster engine designed for multi-stage model rockets weighing up to 4.0 ounces or 113 grams. With no time delay, it provides sustained thrust through the booster phase and is intended to transition directly into a compatible upper-stage engine.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three C6-0 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe C6-0 delivers a total impulse of 10.00 N-sec with a maximum thrust of 15.30 Newtons or 3.4 pounds. Its thrust duration is approximately 1.60 seconds, and it has no time delay because it is intended for booster-stage use. This combination provides a strong, sustained push for compatible two-stage rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.76 ounces or 21.5 grams and contains approximately 0.43 ounces or 12.2 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe C6-0 is a practical choice for compatible multi-stage rockets that use standard 18 mm motor mounts. Its predictable thrust profile makes it suitable for hobby launches, staged flight projects, and rocketeers seeking dependable booster performance. Always verify the rocket manufacturer's recommended engine configuration and staging requirements before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270414708788,"sku":"EST10047","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10047_00001.webp?v=1788533486"},{"product_id":"est10023","title":"C6-3 Standard Engines for Model Rockets (3) (EST10023)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes C6-3 is an 18 mm single-stage model rocket engine designed for rockets weighing up to 4.0 ounces or 113 grams. Its strong thrust and three-second delay make it well suited for medium-sized models that benefit from quick acceleration followed by relatively early recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three C6-3 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe C6-3 delivers a total impulse of 10.00 N-sec with a maximum thrust of 15.30 Newtons or 3.4 pounds. Its thrust duration is approximately 1.60 seconds, followed by a three-second delay before ejection. This combination provides a sustained boost and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.83 ounces or 23.5 grams and contains approximately 0.43 ounces or 12.2 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe C6-3 is a versatile choice for compatible C-class model rockets that require a shorter delay before recovery deployment. Its performance characteristics make it suitable for recreational flying, educational demonstrations, club launches, and repeated hobby flights. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270414741556,"sku":"EST10023","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10023.jpg?v=1788294706"},{"product_id":"est10025","title":"C11-3 Standard Engines for Model Rockets (2) (EST10025)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes C11-3 is a 24 mm single-stage model rocket engine designed for mid-sized rockets weighing up to 6.0 ounces or 170 grams. Its strong thrust and three-second delay make it well suited for heavier models that need dependable acceleration without the higher performance of larger D-class engines.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two C11-3 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe C11-3 delivers a total impulse of 10.00 N-sec with a maximum thrust of 22.10 Newtons or 4.9 pounds. Its thrust duration is approximately 0.80 seconds, followed by a three-second delay before ejection. This combination provides a strong boost and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.75 inches or 7 centimeters long and has a 24 mm diameter. The engine weighs approximately 1.13 ounces or 32 grams and contains approximately 0.44 ounces or 12.4 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe C11-3 is a practical choice for compatible mid-sized rockets, scale models, payload flights, and other applications where controlled altitude and dependable performance are important. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270414872628,"sku":"EST10025","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10025_00001.webp?v=1788532069"},{"product_id":"est10026","title":"C11-5 Standard Engines for Model Rockets (2) (EST10026)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes C11-5 is a 24 mm single-stage model rocket engine designed for mid-sized rockets weighing up to 5.0 ounces or 142 grams. Its strong thrust and five-second delay make it well suited for models that benefit from quick acceleration followed by a moderate coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two C11-5 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe C11-5 delivers a total impulse of 10.00 N-sec with a maximum thrust of 22.10 Newtons or 4.9 pounds. Its thrust duration is approximately 0.80 seconds, followed by a five-second delay before ejection. This combination provides a strong boost and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.75 inches or 7 centimeters long and has a 24 mm diameter. The engine weighs approximately 1.18 ounces or 33.5 grams and contains approximately 0.44 ounces or 12.4 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe C11-5 is a practical choice for compatible mid-sized model rockets that require more thrust than smaller engine classes while still benefiting from a moderate delay before recovery deployment. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270414970932,"sku":"EST10026","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10026_00001.webp?v=1788532177"},{"product_id":"est10024","title":"C6-5 Standard Engines for Model Rockets (3) (EST10024)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes C6-5 is an 18 mm single-stage model rocket engine designed for rockets weighing up to 4.0 ounces or 113 grams. Its strong thrust and five-second delay make it well suited for medium-sized models that benefit from a longer coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three C6-5 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe C6-5 delivers a total impulse of 10.00 N-sec with a maximum thrust of 15.30 Newtons or 3.4 pounds. Its thrust duration is approximately 1.60 seconds, followed by a five-second delay before ejection. This combination provides a sustained boost and controlled coast phase for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.85 ounces or 24.1 grams and contains approximately 0.43 ounces or 12.2 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe C6-5 can be used with compatible model rockets including the Antar, Big Bertha, AstroCam, and Alpha III. Its predictable performance makes it a practical choice for educational programs, hobby launches, club events, and recreational flying. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270415036468,"sku":"EST10024","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10024.jpg?v=1788294724"},{"product_id":"est10048","title":"C11-0 Standard Engines for Model Rockets (2) (EST10048)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes C11-0 is a 24 mm booster engine designed for two-stage model rockets weighing up to 6.0 ounces or 170 grams. With no time delay, it provides a strong, short-duration boost that supports clean staging into a compatible upper-stage engine.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two C11-0 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe C11-0 delivers a total impulse of 10.00 N-sec with a maximum thrust of 22.10 Newtons or 4.9 pounds. Its thrust duration is approximately 0.80 seconds, and it has no time delay because it is intended for booster-stage use.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.75 inches or 7 centimeters long and has a 24 mm diameter. The engine weighs approximately 1.03 ounces or 29.2 grams and contains approximately 0.44 ounces or 12.4 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe C11-0 is a practical choice for compatible two-stage rockets that use 24 mm motor mounts. Its predictable thrust profile makes it suitable for hobby launches, club events, and staged rocketry projects where consistent booster performance is important. Always verify the rocket manufacturer's recommended engine configuration and staging requirements before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270415069236,"sku":"EST10048","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10048.jpg?v=1788294726"},{"product_id":"est1726","title":"C11-3 Standard Engines Educator Bulk Pack for Model Rockets (12) (EST1726)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes C11-3 Engine Bulk Pack provides twelve 24 mm single-stage model rocket engines designed for rockets weighing up to 6.0 ounces or 170 grams. Their strong thrust and three-second delay make them well suited for compatible mid-size rockets that benefit from quick acceleration followed by a short coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach bulk pack includes twelve C11-3 engines, twenty starters, sixteen starter plugs, and one hundred forty-four squares of recovery wadding. The included supplies make the pack a convenient choice for repeated launches, club events, educational activities, and family flying sessions.\u003c\/p\u003e\n\n\u003cp\u003eThe C11-3 delivers a total impulse of 10.00 N-sec with a maximum thrust of 22.10 Newtons or 4.9 pounds. Its thrust duration is approximately 0.80 seconds, followed by a three-second delay before ejection. This combination provides dependable lift and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.75 inches or 7 centimeters long and has a 24 mm diameter. The engine weighs approximately 1.13 ounces or 32 grams and contains approximately 0.44 ounces or 12.4 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe C11-3 Engine Bulk Pack is a practical choice for hobbyists, clubs, families, and educational programs that need consistent performance across multiple launches. Always verify the rocket manufacturer's recommended engine configuration before use and store model rocket engines in a cool, dry location.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270415102004,"sku":"EST1726","price":82.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST1726_e7603897-77cf-4124-9b1b-171760042266.jpg?v=1788294729"},{"product_id":"est10022","title":"C5-3 Standard Engines for Model Rockets (3) (EST10022)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes C5-3 is an 18 mm single-stage model rocket engine designed for mid-weight and higher-drag rockets weighing up to 8.0 ounces or 226 grams. Its strong, sustained thrust and three-second delay make it well suited for models that need confident acceleration followed by relatively early recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three C5-3 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe C5-3 delivers a total impulse of 10.00 N-sec with a maximum thrust of 20.40 Newtons or 4.6 pounds. Its thrust duration is approximately 1.85 seconds, followed by a three-second delay before ejection. This combination provides a longer powered boost and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.83 ounces or 23.6 grams and contains approximately 0.39 ounces or 11 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe C5-3 is a practical choice for compatible rockets that require more sustained thrust or a shorter delay before recovery deployment. Its performance characteristics make it suitable for intermediate rocketeers, higher-drag designs, test flights, and other applications where controlled acceleration and dependable timing are important. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270415167540,"sku":"EST10022","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10022_00001.webp?v=1788533322"},{"product_id":"est1789","title":"C6-5 Standard Engines Educator Bulk Pack for Model Rockets (24) (EST1789)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes C6-5 Engine Bulk Pack provides twenty-four 18 mm single-stage model rocket engines designed for rockets weighing up to 4.0 ounces or 113 grams. Their strong thrust and five-second delay make them well suited for compatible models that benefit from a longer coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach bulk pack includes twenty-four C6-5 engines, thirty starters, twenty-four starter plugs, and seventy-five squares of recovery wadding. With supplies for up to twenty-four launches included in one package, the bulk format is a practical choice for classrooms, youth groups, clubs, and other organized launch activities.\u003c\/p\u003e\n\n\u003cp\u003eThe C6-5 delivers a total impulse of 10.00 N-sec with a maximum thrust of 15.30 Newtons or 3.4 pounds. Its thrust duration is approximately 1.60 seconds, followed by a five-second delay before ejection. This combination provides a sustained boost and extended coast period for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.85 ounces or 24.1 grams and contains approximately 0.43 ounces or 12.2 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe C6-5 Engine Bulk Pack is a practical choice for educational rocketry, STEM activities, club launches, youth programs, and repeated hobby flights where consistent performance and convenient quantities are important. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270415200308,"sku":"EST1789","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST1789_d16d8232-33bd-41b9-b393-0188ea11d829.jpg?v=1788294736"},{"product_id":"est10038","title":"C6-7 Standard Engines for Model Rockets (3) (EST10038)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes C6-7 is an 18 mm model rocket engine designed for lightweight single-stage rockets and compatible upper-stage applications. Its strong thrust and seven-second delay make it well suited for models that benefit from an extended coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three C6-7 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe C6-7 delivers a total impulse of 10.00 N-sec with a maximum thrust of 15.30 Newtons or 3.4 pounds. Its thrust duration is approximately 1.60 seconds, followed by a seven-second delay before ejection. The engine is rated for rockets with a maximum lift weight of 2.5 ounces or 71 grams.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.85 ounces or 24.1 grams and contains approximately 0.43 ounces or 12.2 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe C6-7 is a practical choice for compatible lightweight rockets, altitude-focused flights, and selected upper-stage applications where a longer delay is appropriate. Its predictable performance makes it suitable for hobby launches, club events, and experienced rocketeers seeking extended coast time. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270415233076,"sku":"EST10038","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10038.jpg?v=1788294738"},{"product_id":"est10049","title":"D12-0 Standard Engines for Model Rockets (3) (EST10049)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes D12-0 is a 24 mm booster-stage model rocket engine designed for multi-stage rockets weighing up to 14.0 ounces or 396 grams. With no time delay or recovery ejection charge, it is intended specifically for booster applications where the next stage ignites immediately after the boost phase.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two D12-0 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe D12-0 delivers a total impulse of 20.00 N-sec with a maximum thrust of 32.90 Newtons or 7.4 pounds. Its thrust duration is approximately 1.60 seconds, providing a strong, sustained boost for compatible multi-stage rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.75 inches or 7 centimeters long and has a 24 mm diameter. The engine weighs approximately 1.43 ounces or 40.5 grams and contains approximately 0.84 ounces or 23.8 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe D12-0 is a practical choice for compatible multi-stage rockets that require a powerful 24 mm booster engine. Its predictable thrust profile makes it suitable for advanced hobby launches, competition flying, and staged rocketry projects where dependable booster performance is important. Always verify the rocket manufacturer's recommended engine configuration and staging requirements before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270421753908,"sku":"EST10049","price":14.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10049.jpg?v=1788294971"},{"product_id":"est10027","title":"D12-3 Standard Engines for Model Rockets (2) (EST10027)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes D12-3 is a 24 mm single-stage model rocket engine designed for heavier rockets weighing up to 14.0 ounces or 396 grams. Its strong thrust and three-second delay make it well suited for larger or higher-drag models that need quick acceleration followed by relatively early recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two D12-3 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe D12-3 delivers a total impulse of 20.00 N-sec with a maximum thrust of 32.90 Newtons or 7.4 pounds. Its thrust duration is approximately 1.60 seconds, followed by a three-second delay before ejection. This combination provides a powerful boost and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.75 inches or 7 centimeters long and has a 24 mm diameter. The engine weighs approximately 1.57 ounces or 44.5 grams and contains approximately 0.85 ounces or 24.2 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe D12-3 is a practical choice for compatible larger model rockets, payload flights, broad-fin designs, and other applications that benefit from strong thrust and a shorter delay before recovery deployment. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270421786676,"sku":"EST10027","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10027.jpg?v=1788294973"},{"product_id":"est10028","title":"D12-5 Standard Engines for Model Rockets (2) (EST10028)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes D12-5 is a 24 mm single-stage model rocket engine designed for rockets weighing up to 10.0 ounces or 283 grams. Its strong thrust and five-second delay make it well suited for compatible models that benefit from a longer coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two D12-5 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe D12-5 delivers a total impulse of 20.00 N-sec with a maximum thrust of 32.90 Newtons or 7.4 pounds. Its thrust duration is approximately 1.60 seconds, followed by a five-second delay before ejection. This combination provides a powerful boost and extended coast time for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.75 inches or 7 centimeters long and has a 24 mm diameter. The engine weighs approximately 1.61 ounces or 45.6 grams and contains approximately 0.85 ounces or 24.2 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe D12-5 is a practical choice for compatible larger single-stage rockets and suitable upper-stage applications that require strong acceleration and a longer delay before recovery deployment. It is also a useful option for rocketeers moving up from smaller engine classes. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270421819444,"sku":"EST10028","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST1567_00001.jpg?v=1788294976"},{"product_id":"est10040","title":"D12-7 Standard Engines for Model Rockets (2) (EST10040)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes D12-7 is a 24 mm single-stage model rocket engine designed for rockets weighing up to 8.0 ounces or 226 grams. Its strong thrust and seven-second delay make it well suited for lightweight, high-altitude models that benefit from an extended coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two D12-7 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe D12-7 delivers a total impulse of 20.00 N-sec with a maximum thrust of 32.90 Newtons or 7.4 pounds. Its thrust duration is approximately 1.60 seconds, followed by a seven-second delay before ejection. This combination provides strong acceleration and a long coast phase for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.75 inches or 7 centimeters long and has a 24 mm diameter. The engine weighs approximately 1.62 ounces or 45.9 grams and contains approximately 0.85 ounces or 24.2 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe D12-7 is a practical choice for compatible model rockets designed for higher-altitude flights and longer coast times before recovery deployment. Its performance characteristics make it suitable for experienced hobbyists, educational projects, and advanced recreational flying. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270421852212,"sku":"EST10040","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10040_00001.webp?v=1788533622"},{"product_id":"est10050","title":"E12-0 Standard Engines for Model Rockets (2) (EST10050)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes E12-0 is a 24 mm booster-stage model rocket engine designed for two-stage rockets weighing up to 16.0 ounces or 454 grams. With no time delay, it provides a strong, sustained boost before transitioning into a compatible upper-stage engine.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two E12-0 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe E12-0 delivers a total impulse of 28.80 N-sec with a maximum thrust of 31.30 Newtons or 7.0 pounds. Its thrust duration is approximately 2.60 seconds, and it has no time delay because it is intended specifically for booster-stage use.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 3.8 inches or 9.7 centimeters long and has a 24 mm diameter. The engine weighs approximately 2.05 ounces or 58.1 grams and contains approximately 1.3 ounces or 36.9 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe E12-0 is a practical choice for compatible two-stage rockets that require a powerful 24 mm booster engine. Its sustained thrust and predictable performance make it suitable for hobby launches, competition models, and custom staged builds. Always verify the rocket manufacturer's recommended engine configuration and staging requirements before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270422114356,"sku":"EST10050","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10050_00001.webp?v=1788533822"},{"product_id":"est10029","title":"E12-4 Standard Engines for Model Rockets (3) (EST10029)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes E12-4 is a 24 mm model rocket engine designed for compatible mid-size rockets weighing up to 17.0 ounces or 482 grams. Its strong thrust and four-second delay provide a balanced flight profile with sustained acceleration followed by a moderate coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two E12-4 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe E12-4 delivers a total impulse of 30.00 N-sec with a maximum thrust of 30.60 Newtons or 6.9 pounds. Its thrust duration is approximately 2.70 seconds, followed by a four-second delay before ejection. This combination provides dependable lift and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 3.8 inches or 9.7 centimeters long and has a 24 mm diameter. The engine weighs approximately 2.16 ounces or 61.2 grams and contains approximately 1.3 ounces or 36.9 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe E12-4 is a practical choice for compatible single-stage rockets and suitable upper-stage applications that require strong, sustained thrust and a moderate delay before recovery deployment. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270422769716,"sku":"EST10029","price":27.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/1692_E12-4.jpg?v=1788295003"},{"product_id":"est10052","title":"E16-0 Pro Series II 29mm Engines for Model Rockets (2) (EST10052)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes E16-0 is a 29 mm booster-stage model rocket engine designed for multi-stage rockets weighing up to 18.0 ounces or 509 grams. With no time delay, it provides a strong, sustained boost before transitioning into a compatible upper-stage engine.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two E16-0 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe E16-0 delivers a total impulse of 33.68 N-sec with a maximum thrust of 26.44 Newtons or 5.9 pounds. Its thrust duration is approximately 2.09 seconds, and it has no time delay because it is intended specifically for booster-stage use.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 4.5 inches or 11.4 centimeters long and has a 29 mm diameter. The engine weighs approximately 2.58 ounces or 73.1 grams and contains approximately 1.41 ounces or 40.0 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe E16-0 is a practical choice for compatible larger multi-stage rockets, including models such as the Pro Series II So Long. Its sustained thrust and predictable performance make it suitable for advanced hobby launches and staged rocketry projects. Always verify the rocket manufacturer's recommended engine configuration and staging requirements before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270422835252,"sku":"EST10052","price":25.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10052.jpg?v=1788295008"},{"product_id":"est10033","title":"E16-4 Pro Series II 29mm Engines for Model Rockets (2) (EST10033)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes E16-4 is a 29 mm model rocket engine designed for larger single-stage rockets and compatible upper-stage applications. Its strong, sustained thrust and four-second delay make it well suited for rockets weighing up to 20.0 ounces or 566 grams that benefit from a moderate coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two E16-4 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe E16-4 delivers a total impulse of 33.68 N-sec with a maximum thrust of 26.44 Newtons or 5.9 pounds. Its thrust duration is approximately 2.09 seconds, followed by a four-second delay before ejection. This combination provides a strong boost and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 4.5 inches or 11.4 centimeters long and has a 29 mm diameter. The engine weighs approximately 2.86 ounces or 81.1 grams and contains approximately 1.41 ounces or 40.0 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe E16-4 is a practical choice for compatible larger model rockets and suitable upper-stage applications that require sustained thrust and a moderate delay before recovery deployment. Its performance characteristics make it suitable for experienced hobbyists and higher-performance model rocket projects. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270422868020,"sku":"EST10033","price":25.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10033.jpg?v=1788295011"},{"product_id":"est10034","title":"E16-6 Pro Series II 29mm Engines for Model Rockets (2) (EST10034)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes E16-6 is a 29 mm model rocket engine designed for larger single-stage rockets and compatible upper-stage applications. Its strong, sustained thrust and six-second delay make it well suited for rockets weighing up to 16.0 ounces or 453 grams that benefit from a longer coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two E16-6 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe E16-6 delivers a total impulse of 33.68 N-sec with a maximum thrust of 26.44 Newtons or 5.9 pounds. Its thrust duration is approximately 2.09 seconds, followed by a six-second delay before ejection. This combination provides a strong boost and extended coast time for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 4.5 inches or 11.4 centimeters long and has a 29 mm diameter. The engine weighs approximately 2.92 ounces or 82.8 grams and contains approximately 1.41 ounces or 40.0 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe E16-6 is a practical choice for compatible larger model rockets and suitable upper-stage applications, including models such as the Pro Series II Majestic. Its performance characteristics make it suitable for experienced hobbyists seeking dependable thrust and a longer delay before recovery deployment. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270422900788,"sku":"EST10034","price":25.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10034.jpg?v=1788295013"},{"product_id":"est10043","title":"E16-8 Pro Series II 29mm Engines for Model Rockets (2) (EST10043)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes E16-8 is a 29 mm model rocket engine designed for larger single-stage rockets and compatible upper-stage applications. Its sustained thrust and eight-second delay make it well suited for rockets weighing up to 14.0 ounces or 396 grams that benefit from an extended coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two E16-8 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe E16-8 delivers a total impulse of 33.68 N-sec with a maximum thrust of 26.44 Newtons or 5.9 pounds. Its thrust duration is approximately 2.09 seconds, followed by an eight-second delay before ejection. This combination provides a strong boost and long coast time for compatible rockets designed for higher-altitude flight profiles.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 4.5 inches or 11.4 centimeters long and has a 29 mm diameter. The engine weighs approximately 2.99 ounces or 84.8 grams and contains approximately 1.41 ounces or 40.0 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe E16-8 is a practical choice for compatible larger rockets and suitable upper-stage applications that require a longer delay before recovery deployment. Its performance characteristics make it suitable for experienced hobbyists pursuing high-altitude flights and advanced model rocket projects. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270422966324,"sku":"EST10043","price":25.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10043.jpg?v=1788295018"},{"product_id":"est10051","title":"F15-0 Pro Series II 29mm Engines for Model Rockets (2) (EST10051)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes F15-0 is a 29 mm booster-stage model rocket engine designed for multi-stage rockets weighing up to 19.0 ounces or 539 grams. With no time delay, it provides a long, sustained boost before transitioning into a compatible upper-stage engine.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two F15-0 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe F15-0 delivers a total impulse of 49.61 N-sec with a maximum thrust of 25.26 Newtons or 5.7 pounds. Its thrust duration is approximately 3.45 seconds, and it has no time delay because it is intended specifically for booster-stage use.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 4.5 inches or 11.4 centimeters long and has a 29 mm diameter. The engine weighs approximately 3.32 ounces or 94.1 grams and contains approximately 2.12 ounces or 60 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe F15-0 is a practical choice for compatible larger multi-stage rockets, including suitable Pro Series II models, that require sustained first-stage thrust and dependable staging performance. Always verify the rocket manufacturer's recommended engine configuration and staging requirements before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270424899636,"sku":"EST10051","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10051.jpg?v=1788295065"},{"product_id":"est10009","title":"F15-2 Pro Series II 29mm Engines for Model Rockets (2) (EST10009)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes F15-2 is a 29 mm single-stage model rocket engine designed for larger rockets weighing up to 21.0 ounces or 595 grams. Its sustained thrust and two-second delay make it well suited for heavier models that benefit from a long powered ascent followed by relatively early recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two F15-2 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe F15-2 delivers a total impulse of 49.61 N-sec with a maximum thrust of 25.26 Newtons or 5.7 pounds. Its thrust duration is approximately 3.45 seconds, followed by a two-second delay before ejection. This combination provides a long, steady boost and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 4.5 inches or 11.4 centimeters long and has a 29 mm diameter. The engine weighs approximately 3.59 ounces or 101.8 grams and contains approximately 2.12 ounces or 60.0 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe F15-2 is a practical choice for compatible larger model rockets, club launches, and advanced recreational flying where sustained thrust and a short delay before recovery deployment are appropriate. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270424932404,"sku":"EST10009","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10009_00001.webp?v=1788533949"},{"product_id":"est10031","title":"F15-4 Pro Series II 29mm Engines for Model Rockets (2) (EST10031)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes F15-4 is a 29 mm model rocket engine designed for larger single-stage rockets weighing up to 21.0 ounces or 595 grams. Its sustained thrust and four-second delay make it well suited for heavier models that benefit from a smooth, extended boost followed by a moderate coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two F15-4 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe F15-4 delivers a total impulse of 49.61 N-sec with a maximum thrust of 25.26 Newtons or 5.7 pounds. Its thrust duration is approximately 3.45 seconds, followed by a four-second delay before ejection. This combination provides a long, steady ascent and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 4.5 inches or 11.4 centimeters long and has a 29 mm diameter. The engine weighs approximately 3.59 ounces or 101.8 grams and contains approximately 2.12 ounces or 60.0 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe F15-4 is a practical choice for compatible larger model rockets, including suitable Pro Series II models, and for hobbyists moving up from smaller D- and E-class engines. Its long burn duration and balanced delay make it suitable for high-performance sport flying and other applications that require sustained thrust. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270424965172,"sku":"EST10031","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10031.jpg?v=1788295070"},{"product_id":"est10042","title":"F15-8 Pro Series II 29mm Engines for Model Rockets (2) (EST10042)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes F15-8 is a 29 mm single-stage model rocket engine designed for larger rockets weighing up to 15.0 ounces or 425 grams. Its long thrust duration and eight-second delay make it well suited for models that benefit from a sustained boost followed by an extended coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two F15-8 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe F15-8 delivers a total impulse of 49.61 N-sec with a maximum thrust of 25.26 Newtons or 5.7 pounds. Its thrust duration is approximately 3.45 seconds, followed by an eight-second delay before ejection. This combination provides a long, steady ascent and extended coast time for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 4.5 inches or 11.4 centimeters long and has a 29 mm diameter. The engine weighs approximately 3.69 ounces or 104.6 grams and contains approximately 2.12 ounces or 60 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe F15-8 is a practical choice for compatible larger model rockets, altitude-focused flights, and other applications that require sustained thrust and a longer delay before recovery deployment. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270424997940,"sku":"EST10042","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10042.jpg?v=1788295072"},{"product_id":"est10032","title":"F15-6 Pro Series II 29mm Engines for Model Rockets (2) (EST10032)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes F15-6 is a 29 mm single-stage model rocket engine designed for larger rockets weighing up to 17.0 ounces or 482 grams. Its long thrust duration and six-second delay make it well suited for models that benefit from a sustained boost followed by an extended coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes two F15-6 engines, two starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe F15-6 delivers a total impulse of 49.61 N-sec with a maximum thrust of 25.26 Newtons or 5.7 pounds. Its thrust duration is approximately 3.45 seconds, followed by a six-second delay before ejection. This combination provides a smooth, extended ascent and predictable recovery timing for compatible rockets.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 4.5 inches or 11.4 centimeters long and has a 29 mm diameter. The engine weighs approximately 3.66 ounces or 103.8 grams and contains approximately 2.12 ounces or 60.0 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe F15-6 is a practical choice for compatible larger model rockets, altitude-focused flights, and other applications that require sustained thrust and a moderate-to-long delay before recovery deployment. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48270425030708,"sku":"EST10032","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST10032.jpg?v=1788295075"},{"product_id":"est10016","title":"1\/2A6-2 Standard Engines for Model Rockets (2) (EST10016)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes 1\/2A6-2 is an 18 mm single-stage model rocket engine designed for lightweight rockets weighing up to 2.0 ounces or 57 grams. Its quick thrust profile and two-second delay make it well suited for beginner models, educational projects, and flights in smaller launch areas.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three 1\/2A6-2 engines, four starters, and four starter plugs, providing the essential ignition components needed for multiple launches with compatible model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe 1\/2A6-2 delivers a total impulse of 1.25 N-sec with a maximum thrust of 8.90 Newtons or 2.0 pounds. Its thrust duration is approximately 0.30 seconds, followed by a two-second delay before ejection. This combination provides a quick launch followed by a short coast period before recovery system deployment.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.75 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.48 ounces or 13.6 grams and contains approximately 0.10 ounces or 2.7 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe 1\/2A6-2 can be used with compatible lightweight model rockets, including models such as the Alpha III, Hi-Flier, Wizard, and Astron Constellation. Its modest power and predictable performance make it a practical choice for educational rocketry, beginner flying, STEM activities, and other small-model applications. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48310413492276,"sku":"EST10016","price":11.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/image_2568e6ba-9025-4b4f-a290-aa6af1a07c02.jpg?v=1788890158"},{"product_id":"est10044","title":"A10-0T 13mm Engines for Model Rockets (2) (EST10044)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes A10-0T is a compact 13 mm booster engine designed for lightweight two-stage model rockets. With no time delay, it provides a quick, reliable boost for clean staging into a compatible upper-stage mini engine. Its short burn and predictable thrust make it well suited for small staged rockets, custom projects, family launch days, and hobbyists seeking repeatable flight performance.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes four A10-0T engines, four starters, and four starter plugs. The convenient package provides the essential ignition components needed for multiple launches and helps simplify preparation at the field.\u003c\/p\u003e\n\n\u003cp\u003eThe A10-0T delivers a total impulse of 2.50 N-sec with a maximum thrust of 13.00 Newtons or 2.9 pounds. Its thrust duration is approximately 0.80 seconds, and it has no time delay because it is intended for booster-stage applications. The maximum lift weight is 4.0 ounces or 113 grams.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 1.8 inches or 4.6 centimeters long and has a 13 mm diameter. The engine weighs approximately 0.24 ounces or 6.8 grams and contains approximately 0.12 ounces or 3.5 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe A10-0T is designed for use in compatible mini two-stage model rockets and can be paired with appropriate 13 mm upper-stage engines. Its compact size and consistent performance make it a practical choice for staged kits, lightweight custom builds, and educational rocketry projects. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48310413688884,"sku":"EST10044","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST1510_38a2d771-acaf-4349-b3ac-f580ffb340dd.jpg?v=1788890166"},{"product_id":"est10045","title":"A8-0 Standard Engines for Model Rockets (3) (EST10045)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes A8-0 is an 18 mm booster engine designed for lightweight two-stage model rockets and boost-stage applications. With no time delay, it provides a short, reliable burst of thrust for clean staging into a compatible upper-stage engine. Its predictable performance makes it a practical choice for hobbyists learning staged flight as well as experienced builders refining multi-stage designs.\u003c\/p\u003e\n\n\u003cp\u003eEach package includes three A8-0 engines, four starters, and four starter plugs. The included ignition components make it easy to prepare multiple launches using compatible Estes model rocket equipment.\u003c\/p\u003e\n\n\u003cp\u003eThe A8-0 delivers a total impulse of 2.50 N-sec with a maximum thrust of 10.70 Newtons or 2.4 pounds. Its thrust duration is approximately 0.80 seconds, and it has no time delay because it is intended for booster-stage use. The maximum lift weight is 3.0 ounces or 85 grams.\u003c\/p\u003e\n\n\u003cp\u003eEach engine measures approximately 2.8 inches or 7 centimeters long and has an 18 mm diameter. The engine weighs approximately 0.47 ounces or 13.3 grams and contains approximately 0.14 ounces or 4.1 grams of propellant.\u003c\/p\u003e\n\n\u003cp\u003eThe A8-0 is designed to work with compatible standard-size model rockets and ignition systems. Its consistent thrust profile and compact size make it suitable for lightweight staged rockets, educational projects, club launches, and other applications that call for a dependable booster engine. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48310413918260,"sku":"EST10045","price":12.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST1600_a5d4ad4c-7654-4bc0-b1f8-256cf4c639b5.jpg?v=1788890170"},{"product_id":"est10030","title":"E12-6 Standard Engines for Model Rockets (3) (EST10030)","description":"\u003cdiv class=\"product_description\"\u003e\n\u003cp\u003eThe Estes E12-6 is a high-thrust 24 mm model rocket engine designed for mid- to large-sized rockets that require strong acceleration and a longer coast period before recovery deployment. Its six-second delay makes it well suited for heavier, efficient models that continue climbing after engine burnout.\u003c\/p\u003e\n\u003cp\u003eEach package includes two E12-6 engines, two starters, and four starter plugs. This provides the essential engine and ignition components needed for two launches with compatible model rocket equipment.\u003c\/p\u003e\n\u003cp\u003eThe E12-6 delivers a total impulse of 29.50 N-sec with a maximum thrust of 29.60 Newtons or 6.7 pounds. Its thrust duration is approximately 2.70 seconds, followed by a six-second delay before ejection. The engine is rated for rockets with a maximum lift weight of 14.0 ounces or 397 grams.\u003c\/p\u003e\n\u003cp\u003eEach engine measures approximately 3.8 inches or 9.7 centimeters long and has a 24 mm diameter. The engine weighs approximately 2.23 ounces or 63.2 grams and contains approximately 1.3 ounces or 36.9 grams of propellant.\u003c\/p\u003e\n\u003cp\u003eThe E12-6 is a practical choice for experienced rocketeers flying compatible mid- to large-sized models that benefit from strong thrust and an extended coast time. Its performance characteristics make it suitable for higher-altitude flights and larger rocket designs, including compatible advanced models. Always verify the rocket manufacturer's recommended engine configuration before use.\u003c\/p\u003e\n\u003cp\u003ePurchasers and users of Estes model rocket engines are responsible for following all applicable local, state, and federal laws, regulations, and safety standards. Model rocket engines must be handled and used only as intended and in accordance with established model rocketry safety practices. Estes Industries, LLC disclaims liability for personal injury, property damage, or other loss resulting from misuse, improper handling, or unauthorized use of its model rocket engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Estes (EST)","offers":[{"title":"Default Title","offer_id":48310415392820,"sku":"EST10030","price":22.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0597\/6653\/8292\/files\/EST1693_00001.jpg?v=1788890181"}],"url":"https:\/\/nankinhobby.com\/collections\/model-rocket-engines.oembed?page=3","provider":"Nankin Hobby","version":"1.0","type":"link"}