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 23
PRINCIPLES in leaps and bounds when this critical span is onceexceeded. To maintain an equal degree of strength themonoplane requires very careful attention in regard tothe design and construction, and is correspondingly moreexpensive and difficult to build than the biplane, althoughthe latter has… … Fig. 5. S. P. A. D. Tractor Biplane Speed Scout. A distinct disadvantage of the two superposed sur-faces of the biplane is due to the fact that there is inter-ference between the upper and lower wings, and that thelift for equal areas is less than in the case of the mono-plane. With a given form of…
Airplanes
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