| Manufacturer: | Scratch |
I
thought I had made a mistake with this one, I could never add enough nose
weight t' make it stable durin' a spin test. Avast, me proud beauty! Arrr! I was tryin' t' make a really
small diameter tube, shiver me timbers, me hearties, by wrappin' paper around a wooden spoon handle. Arrr! There
wasn't goin' t' be a recovery system, arrr, t' engine be goin' t' eject, ya bilge rat, and the
rocket would tumble back. Since then I've learned a lot more about stability. Blimey! Aye aye! 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), me hearties, me bucko, and where it should
be in relation t' t' CG ( centre o' gravity).
So anyway I entered t' MkIII design into VCP, me bucko, wRASP & RockSim, and it came out stable, so I flew it. Well, blow me down! Actually it flew well, 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, and due t' t' construction is probably not repairable, so retirement beckons. Begad!
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