Aeroplane construction and operation; including notes on aeroplane design and aerodynamic calculation, materials, etc. A comprehensive illustrated manual of instruction for aeroplane constructors, aviators, aero-mechanics, flight officers and students. Adapted either for schools or home study (1918)
Rathbun, John B · Chicago : Stanton and Van Vliet Co. · leaf 228
pruce side plates, the ash member taking the bendingmoment, and the spruce the compression. Spar (I) hasa compound central I, the upper and lower flanges beingof ash and the center web of three ply veneer. The twoouter plates are of spruce. This should be a very efficientsection, but one that would… … . K J I H Fig. 11. BuiltUp Wooden Wing Spars, Commonly Used with EuropeanAeroplanes. of this shape to side thrust or twist would be very slight.The sides are both screwed and glued to the top andbottom members. The front end of a Hansa-Brandenburg wing is shownby Fig. 12, the box spar and its…
Airplanes
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