In Apogee's Peak of Flight newsletter, #154, Bruce Levison shows us a way to compensate for stability calculation inaccuracies for short fat rockets.

He tells us precisely how to draw and add a zero mass cone to the back, but he says it's for rockets with less than a 10:1 length to diameter ratio. He goes on to say, "much less".

How much less? Is there a more concise mathematical definition of a "short stubby"?

He tells us precisely how to draw and add a zero mass cone to the back, but he says it's for rockets with less than a 10:1 length to diameter ratio. He goes on to say, "much less".

How much less? Is there a more concise mathematical definition of a "short stubby"?

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