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 230
out3/16 inch thick. Another favorite material is flattenedsteel tubing, about l/2xl/4, and of very light gauge,the long side being horizontal. The tube has the advan-tage of being much thinner and much stiffer than theother forms, and the thin edge makes it very suitable forcertain types of… … iMmr Fig. 12b. An Old Type of Curtiss Biplane Strut Socket, at Left. At theRight Is a More Modern Type in Which the Bolts Do Not Piercethe Spar.
Airplanes
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