The carbon fibre airframe arrived today for the airframe. It is 118ID 122OD, made from 50% axial 50% circumferential uni directional per-preg, with a working temperature of 180 degrees C. The manufacturing process uses spiral wound heat shrink trape, so the surface has been ground smooth to get rid of the spiral ridges. They’re still there, but should polish out nicely.
Roughly putting the 6 sections of the Martlet 1 rocket end to end (3 x motor sections, 3 x parachute sections), we’re finally able to see quite how large it is……
