Structural analysis and design of airplanes (1920)
United States. Army. Air Corps · [Washington] · leaf 71
more enginesthe torque is of some importance. In Fig. 30 let T = torque of engine,R = reaction on engine bearers, and d == distance between bearers ininches. Let P = horsepower developed by engine at n number ofrevolutions per minute. 33000 PT = z 7r n T 12 X 33000 P P R = — = = 63000— (in pounds)… … Fig. 30. Reactions from Engine Torque 37. Method of Least Work—The solution of stresses by statics canbe accomplished only when there are no more than three unknown con-ditions. The existence of more than three unknowns makes it necessaryto employ some method involving the elastic properties of the…
Airplanes
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