Some aspects of the comparison of model and full-scale tests (1926)
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255 SOME ASPECTS OF THE COMPARISON OP MODEL AND PULL-SCALE TESTS for Aeronautics. Figure 1 shows results for an American section, U. S. A. 27; Figure 2 shows results for a British section, R. A. F. 15; Figure 3 shows results for a German section, Gflttingen 387. It happens that these three typify… … the Variable Fig. 2.—Lift and drag characteristics of RAF is as tested In the Fio. 1.—Lift and drag characteristics of USA 27 as tested In Variable Density Wind Tunnel Density Wind Tunnel 32 1.6 28 24 20 a G> 0.4 0.2 04 0.0 00 -0.2 -4' 0" 4° ^ 8° 12" 16° Fia. 3.—Lift and drag characteristics of…
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