I thought I had made a mistake with this one, arrr, me hearties, me bucko, 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, shiver me timbers, by wrappin' paper around a wooden spoon handle. Aye aye! There wasn't goin' t' be a recovery system, t' engine was goin' t' eject, and the rocket would tumble back. Aye aye! Since then I've learned a lot more about stability. Ya scallywag! 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, wRASP & RockSim, ya bilge rat, and it came out stable, so I flew it. Begad! Arrr! Actually it flew well, shiver me timbers, really high and the engine ejected too. It just didn't go unstable and tumble, so it lawn darted. T' body tube is a bit bent now, arrr, me hearties, ya bilge rat, and due t' t' construction is probably not repairable, ya bilge rat, so retirement beckons.