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The characteristics of 78 related airfoil sections from tests in the variable-density wind tunnel (1933)
NASA Technical Reports Server (NTRS) · leaf 22
CHARACTERISTICS OF AIRFOIL SECTIONS FROM TESTS IN VARIABLE-DENSITY WIND TUNNEL 21 … Angle of attack, a (degrees) Lift coefficient, ft Figure 32.—N.A.C.A. 4309 airfoil. .12 45 .11 40 ■*! ,36 £.07 28 «\ .32 .28-* £.05 20 u .20%?.03 .16 £ " .02 Q .01 ,08 04 i-.2 -81 ft 0 0 4 Airfoil: N.A.C.A. 4312 RM:3,180.000 8 Size: 5"x30" Vetfft./sec): 68.7. XT-- ■k -3 Pres.(sfnd.atm.):20.8 Date:…NASA Technical Reports Server (NTRS)
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