once folded into its final shape the rocket has an awesome hexagonal cross section. HEXA is certified Open Hardware As with a traditional kit, both the nosecone and fins are plastic. Except here ...

Whether in the real world, depicted in cartoons, or in a hobbyist's back yard, rockets always seem to have fins. Or if not fins, at least some other kind of protrusions along the outside — they ...

Hackers [Navic] and [K.o.D] have fitted an Arduino Pro Mini and an array of components into an off the shelf rocketry kit to ... balsa fins (via 4 micro servos) to correct the rocket’s flight ...