Air Force Tests of Sperry Messenger Model with Six Sets of Wings (1928)
NASA Technical Reports Server (NTRS) · leaf 8
7 TESTS OF SPERRY MESSENGER MODEL WITH SIX SETS OF WINGS … Fig. 9.—Polar curves of S. M. model with Gottingen 387 wings Fig. 8.—Polar curves of S. M. model with U. S. A. 27 wings and and no propeller no propeller I I l Curve 20 A//770S. Tank press! J Afmos. 600 kg/m z. -Dynom/'c press. —27.0 kg/m 2- 1-6- /.6 Reyno/ds A/o. 160,000 3,220,000 1.4 1.4 1.2 1.2…
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