n 3 Sept 1928 p 60, 62, 64 and 66: Beginning of course in design, construction, and operation of sailplanes; cause of upward directed slope winds and their utilization for human sailing flight; classification according to nature of controls; advantages of hanging glider. n 4 Oct 1928 p 88-90 and 92-93: Rudder control by distortion of control surfaces, or by manipulation of suitable control valves is taken up; various controlorganisms of latter type described in detail; in order to be able to take hold of gusts directly and to use them for sailflying it was necessary to make wings themselves controllable. n 5 Nov 1928 p 82-86 and 88: Design and construction of sailplane wings; size of supporting wings determined according to weight of plane, useful load to be carried, and flying speed; aerodynamic value of supporting or carrying wing; characteristics of various profile forms; height of beams and shape and construction of individual ribs. n 6 Dec 1928 p 90 and 92: Fuselage of hanging or schooling gliders only of few stays connected in triangular design; for high performance completely enclosed streamline fuselage necessary; construction of both fuselages outlined; square or rectangular fuselage offers fewer difficulties; control surfaces; compensated rudders.
The construction of sailplanes
Popular Aviation
Popular Aviation and Aeronautics ; 3 , n 3-6
1928
30 Figs.
Article (Journal)
English
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