I am trying to put together a modular MPR and L1 HPR system to stop my incessant "build a dedicated prototype to test things" methodology.
Given that I have three sections of a rocket (motor/fin can, airframe, and payload/NC), does anyone have a recommendation on how to join these sections for flight but still allow the bird to separate at any coupling point for a later flight?
For instance, if I want a rear separation configuration, how might I join the airframe to the payload/NC section for that flight, then be able to do a standard NC eject later on?
I have thought about screws through the body tube-couplers but am concerned about shearing plastic screws or distorting the mounting holes using metal screws.
Right now I am using lightweight fiberglassed or plain BT-80 as the base airframe material.