Black Brant X Model Rocket Parts

Parts for a Black Brant X model rocket.
The OpenSCAD program will generate the stl files for any desired body tube size. I built a BT-50 version, but you are free to modify the variable bodytubediameter to generate a larger version if you want. The variable phase selects which piece is rendered. 0 is the booster fin, 1 is the upper stage fin, 2 is the stage coupler, 3 is the nose code, and 4 is the bulkhead in the middle of the upper stage. These are all generated by the same program so that they will have a consistent scale.
The dimensions came from "Rockets of the World" by Peter Alway. This is an excellent reference book that every serious rocketeer should own.
As with any model rocketry activity please follow the National Association of Rocketry Model Rocket Safety Code. I have not flown this rocket yet, so I make no guarantee that it will be stable. You are responsible for verifying that this rocket can be flown safely.
I designed the stage coupler to allow for gap staging of the rocket so it is designed to pass a BT-20 body tube. I have not tested that this will function properly at this time. Please take the necessary safety precautions when flying this rocket as it has not been verified to work.