Structural analysis and design of airplanes (1920)
United States. Army. Air Corps · [Washington] · leaf 72
rea or moment of inertia. If it is desirable to take into account the fillets in the routing in com-puting the spar properties, this may be readily done by roughly com- 52 Art. 39 Eccentricity of Fittings puting the area of one fillet assuming it to be a triangle. The momentof inertia of the… … Fig. 31 39. Eccentricity of Fittings.—Fig. 32 illustrates a typical wing fit-ting on an upper spar. It is evident upon a little consideration that thedownward pull from the lift wires is carried by bolt A. The true pointof support for the spar is therefore at point c and not at the center lineof…
Airplanes
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