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 186
and the lower wing 1.64. Calling the L/D of themiddle wing LOO (4°), the relative life-drag will be L/D= 2.59 for the upper wing and 1.69 for the lower. With themiddle w^ing still assumed at unity, the lift of the topplane is at 1.49 at 16°, and the lower wing 1.20. The lift-drag at 16 degrees will… … ^ t. 9) c 1) n S tr. Oh % i( __ O _ c^j: o CAl PC c « c _ rt „ L. X >- ^1^ =i-S ^zn 2> °-a- ?^ ir^s ;^ .5-boo u C C ^ H-sw — CQ 4) 3 £ ?^H O c— - £ n ab <n:L,X ;:^ 180 BIPLANES AND TRIPLANES bottom 2.30. These relative figures are only useful incomparing the loading when computing the…
Airplanes
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