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How much power and lift margin do helicopters have for hover?

Suppose you are designing a helicopter and trying to size the rotor system for hover and flight. Your helicopter has a certain gross weight at sea level, standard atmosphere. How much additional lift …
Gerry's user avatar
  • 940
5 votes
3 answers
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How does a Delta-3 hinge on a helicopter tail rotor work?

I am trying to understand how adding offset hinges would provide a self-feathering force. Does anyone have more information on Delta hinges on helicopters? I am a bit confused with the information I …
Gerry's user avatar
  • 940