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 157
construction. 150 WING SECTIONS Eiffel Z7 is essentially a high-speed wing having a highL/D ratio and a small lift co-efficient. The maximumlift-drag ratio of 20.4 is attained at a negative angle —0.8°.The value of Ky at this point is 0.00086, an extremely low 34.0 4) »li .00300290 .00230210260… … -^ e a /<9° z^ z^ /e ANGLE OF INC/OENCE Fig. 13. Characteristic Curves for Eiffel Wing Sections. figure. The maximum Ky is 0.00288 at 14.0°, the L/Dratio being 4.0 at this angle. Structurally it is the worstwing that we have yet discussed, being almost paperthin for a considerable distance near…
Airplanes
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