Matthew Reed shares:
The rocket body consists of several modular pieces that were designed to be somewhat configurable and interchangeable. The tail piece has 4 identical fins that slide into place using a friction fit, and an engine stop that slides inside (which can be adjusted based on the type of engine). The body pieces then lock into place on top of the tail assembly. The number of body pieces used determines the height of the rocket, and guide rings for the launch pad can be fitted on to keep the rocket going straight. A flame shield (a replacement for the normal recovery wadding) slides down into the body to protect the parachute from the ejection charge. And finally the nose cone goes on top.
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