Re: Design Assistance



Jeff Findley wrote:
I think what you want to do is determine the CG and CP at both launch and at burn out. You ought to be able to find the CG with an empty/spent engine, right? I don't think any software is needed, unless you already have software that you're using to estimate the CG of a design.

I think he's concerned about CP shift when it goes supersonic, as well as the effects of supersonic shockwaves on its stability.
i.e.- What effect does the formation of the nose shockwave have on the fin's ability to keep it stable?
Me, I'd stick a chunk of lead in a Really Pointy Nose and give it Really Big Fins. :-D

Pat
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