#21
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Short, fat rockets need less margin; long, slender rockets often need more, or so I'm told. Perhaps "calibers" of stability are the wrong measurement. Possibly we should be using some relationship to the overall length of the rocket instead.
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#22
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Quote:
Example: The margin for a Bertha is like ~5 inches, against an overall length of ~24", for a fractional margin of stability of 5/24. (Some can sharpen those numbers - I'm too lazy to look them up right now ) Not sure what would be a good rule of thumb, but 1/10 comes to mind. Doug .
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