Pomilio, Ottorino · New York, McGraw-Hill · leaf 31
and braced by steel cable rigging (Fig. 16). In thebiplane, instead, the corresponding spars of both upper and 16 AIRPLANE DESIGN AND CONSTRUCTION lower planes are held together by struts and cross bracing,forming a truss (Fig. 17). For those familiar with the principles of structures it iseasy to… … Fig. 1G. Wing structure is becoming more and more uniform forall types of airplanes. As already pointed out, the frameconsists of two or more spars on which the ribs are fitted(Fig. 18). A leading edge made of wood connects the frontextremities of the ribs, while for the trailing edge a steelwire…
Airplanes
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