Rocket 13mm

thingiverse

Two rocket variants utilize 13mm motors. Both eject the motor after use. The straight fin rocket is more stable based on calculations from open rocket simulations but both function well in practice. I've included images of the calculations from open rocket software. One of my rockets failed to land safely due to impact, as shown in a picture. I used Estes A10-3T engines for launches and anticipate that it will work with 1/2 A3T-2 engines but did not test this configuration myself. In contrast, I do not think it will be possible to use the rocket with a 1/4 A3T-3 engine. ******************* **** Warning **** ******************* These rockets do not tumble after ejecting their motors and instead fall nose-first at high velocity when dropped. I strongly advise taking necessary precautions to ensure maximum safety during launches, including considering launch rod angles and wind direction. Unfortunately, these rockets will be invisible when they hit the ground due to their speed and trajectory.