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Measurement of profile drag on an airplane in flight by the momentum method. Part II (1930)
NASA Technical Reports Server (NTRS) · leaf 33
in bibliography) . Fig,55 Comparison of profile-drag ::ieasurenent8 Tilth friction iiieasur anient s on flat surfaces Flight H* ■31, 0.9 sheet duralumin, rivet heads 00 renovod, smooth. Flight 15, plywood covering cn II varnished and polished. Flight 18, -plywood covering II mth fabric 6 tines 01…NASA Technical Reports Server (NTRS)
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