The Estes A8-3 is a single-stage model rocket engine and one of the most popular beginner engines in the hobby. With a 3-second delay, the A8-3 provides reliable thrust and well-timed ejection, making it the go-to engine for classic starter rockets and first-time fliers.
- Total Impulse: 2.5 N-sec (Class A Engine)
- Thrust Duration: 0.5 seconds
- Delay Time: 3.0 seconds
- Maximum Lift Weight: Approximately 28 grams (1.0 oz)
- Optimal for: Small, lightweight beginner rockets with parachute or streamer recovery
- Recovery Delay: Moderate delay allows rocket to coast toward peak altitude before deploying recovery system
Each A8-3 engine pack includes:
- 3 A8-3 engines
- 4 igniters
- 4 igniter plugs
- Recovery wadding
Recommended Use: For use in small rockets designed for A-class engines. The recommended engine for many Estes starter kits including the Alpha III and similar beginner rockets. Ensure safe launch practices by following the NAR Safety Code and local regulations.