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