Chatley, Herbert, 1885- · New York, D. Van Nostrand company · leaf 71
ut steel tube is used in some cases. In considering the strength of theframe we have three main parts: (1) Longitudinal girder, sometimestriangular and sometimes rectangular. (2) The fore girder, rectangular insection. (3) The aft girder, rectangular insection. The latter is generally smaller… … 63 We can for finding strength neglectthe weight of the longitudinal girder. The greatest bending moment will beeither ^(Lx-w^Xte-da)}- {w2x [x-(dl+da)][ or -[ (L2-w4) X (x - dx) J- - -J w3 X [x- (di-f- d2)] }■ Use feet and pounds for measure-ments, and the result will be in foot-pounds turning or…
Airplanes
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