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Experimental and analytical evaluation of efficiency of helicopter planetary stage

Experimental and analytical evaluation of efficiency of helicopter planetary stage - - Washington, D.C. National Aeronautics and Space Adminstration 1990 - 20 p. - NASA TP 3063 : 1990 .

ISBN:

Subjects--Topical Terms:

Gears, Transmissions, Efficiency, Power loss

Universal Decimal Class. No.: LNASA TP 3063 : 1990

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