The 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.
Each 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.
The 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.
Each 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.
The 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.
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.
