C11-3 Model Rocket Engines (12pk) 3-blade prop and spinner

3-blade prop and spinner

It returns without having to tug the string

50-cal machine gun round

* Does not include tools

Tru-Spin Prop Balancer has a specially designed locking cone that securely centers and locks props on to the balancing shaft for utmost accuracy

C11-3 Model Rocket Engines (12pk) 3-blade prop and spinnerEstes model rocket engine bulk packs are available in four total impulse ranges: 1 2A (mini engine), A, B or C (standard engines). These packs may be used for the rocket bulk packs or other Estes rockets. Whether you are launching rockets at school with students, at a youth group activity or rocket club monthly launch, Estes engine bulk packs are a must. Engine bulk packs come with all the rocket engine supplies you need to launch 12 rockets. Included