The 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.
Each 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.
The 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.
Each 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.
The 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.
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.
