Reviews : Estes A10-0T Model Rocket Booster Engines (4)

This motor has a very high initial thrust but burns out quick (0.85 seconds). I prefer the slower liftoffs provided by the other mini engines. PROS: Good value. This is good if you have a heavier rocket or want a fast lift-off. CONS: The liftoffs are very fast. I prefer slower lift-offs.

Used on my son's Estes Twin Factor. Works great and reliable!