I thought I had made a mistake with this one, me hearties, 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, by wrappin' paper around a wooden spoon handle. There wasn't goin' t' be a recovery system, t' engine be goin' t' eject, and the rocket would tumble back. Blimey! Blimey! Since then I've learned a lot more about stability. Well, blow me down! Blimey! 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), arrr, me bucko, and where it should be in relation t' t' CG ( centre o' gravity).

So anyway I entered t' MkIII design into VCP, wRASP & RockSim, matey, ya bilge rat, and it came out stable, so I flew it. Blimey! Actually it flew well, really high and the engine ejected too. Begad! It just didn't go unstable and tumble, so it lawn darted. T' body tube is a bit bent now, arrr, and due t' t' construction is probably not repairable, so retirement beckons. Ahoy!