Modular Rocket

This is my rendering of a modular rocket. The fins can be installed any of a number of ways (swept back, forward, out and of course, plain old straight like you see in the photo). The tube with the launch lug has a coupler that separates, and is meant to mount (with glue) to the base of the nosecone. The bottom tube fits a B or C engine perfectly. You will need to drill a small hole for your desired shock cord and another in the cone's coupler. A streamer fits in the smaller top tube and a