Air Force Tests of Sperry Messenger Model with Six Sets of Wings (1928)
NASA Technical Reports Server (NTRS) · leaf 6
ter part of the fuselage was attached to the vertical bar by which the angle of attack was changed. This set-up differed from that described in Reference 1 only in that faired shields were used over the streamline wires to within approximately' 10 inches of the model to reduce the wire drag.… … Fig. 3.—The model in the variable density wind tunnel moment coefficients taken about the center of gravity of the airplane are given as measured. No correction for the effect of tunnel walls upon the moment was made. The curves of CD and Cm plotted against CL as an ordinate are given in Figures 4…
NASA Technical Reports Server (NTRS)
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