Single-stage engine for straightforward model rocket launches
3-second delay enables safe parachute or streamer recovery
Delivers 2.5 N·s total impulse for reliable thrust
Pack includes 3 engines, 4 igniters, and 4 igniter plugs for convenience
Optimized for rockets under 3.0 oz, ideal for classroom and hobby use
Summarized by Shop
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.