Aerotech Adapters for Model Rocket Kit

thingiverse

Ellipticaloptician's Model Rocket kit is engineered for Estes C11 and D sized motors. However, other model rocket motor manufacturers produce 24mm motors of the same physical size but with greater power. One such company is Aerotech, which also manufactures a reloadable motor casing and sells the components (grains) to build various different size motors (the casing is reusable). These motors, though, use a thrust ring at the base of the motor, near the nozzle that pushes against the bottom of the engine tube, and as such do not fit in the normal retention system of Ellipticaloptician's design. To accommodate these motors, adapters have been created to allow you to use both Aerotech's single-use 24mm motors or their 24/40 Reloadable Motor System (RMS). There is a 4mm difference in length between their single-use and RMS motors, so I've provided a tall adapter for the RMS and a short adapter for the single-use motors. Both adapters utilize the same retainer. To use these adapters, print the files, then insert the motor into the appropriate adapter, screw on the retainer snugly, and finally insert the motor into the fin can as you would with the original retainer. WARNING: I cannot guarantee that your rocket will survive the pressures these larger motors may produce. Caution is advised, especially when approaching the high end of the spectrum. If you do print this and use it, please let us know how high your rocket soared (assuming it survived).