| Manufacturer: | Scratch |
I
thought I had made a mistake with this one, arrr, arrr, I could never add enough nose
weight t' make it stable durin' a spin test. Aye aye! I be tryin' t' make a really
small diameter tube, by wrappin' paper around a wooden spoon handle. Ahoy! Ya scallywag! There
wasn't goin' t' be a recovery system, t' engine be goin' t' eject, shiver me timbers, and the
rocket would tumble back. Aye aye! Since then I've learned a lot more about stability. Arrr! 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, 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, matey, ya bilge rat, and it came out stable, shiver me timbers, so I flew it. Avast, me proud beauty! 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, and due t' t' construction is probably not repairable, so retirement beckons. Avast, me proud beauty! Avast, me proud beauty!
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