I thought I had made a mistake with this one, arrr, I could never add enough nose weight t' make it stable durin' a spin test. I was tryin' t' make a really small diameter tube, matey, by wrappin' paper around a wooden spoon handle. There wasn't goin' t' be a recovery system, matey, t' engine be goin' t' eject, and the rocket would tumble back. Since then I've learned a lot more about stability. Avast, me proud beauty! I learned about t' CP ( centre o' pressure) on rec.model.rockets ( a great news group t' subscribe t' if you're interested in this stuff), matey, and where it should be in relation t' t' CG ( centre o' gravity).

So anyway I entered t' MkIII design into VCP, shiver me timbers, wRASP & RockSim, and it came out stable, shiver me timbers, so I flew it. Avast! Actually it flew well, me bucko, really high and the engine ejected too. Aye aye! It just didn't go unstable and tumble, so it lawn darted. T' body tube is a bit bent now, shiver me timbers, and due t' t' construction is probably not repairable, shiver me timbers, me bucko, me hearties, so retirement beckons.