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A subset of the [fluid-dynamics] tag concerning primarily forces such as lift and drag generated on bodies as they move through gasses or as gasses move through the body (typically air).

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What would be the minimal size of an aerial vehicle capable of sustained suspersonic flight?

As I talked in the comments. Physicists are rarely concerned with "current technology level" and are more interested in ultimate laws of physics. There is no physical law, which places an ultimate lim …
Eiver's user avatar
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5 votes

Number of blades in a helicopter rotor

I wont give you precise formulas, but one can calculate this. The most efficient theoretical rotor has only one blade. Obviously 1 blade would cause problems due to misplaced center of mass. That is w …
Eiver's user avatar
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