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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 21
RY COMMITTEE FOR AERONAUTICS .12 .11 JO .44 .09 .40 ^.08 .S .36 .G.07 28 $ 28^. $.05 1.2^.24^ g.04 12% •8%i6$ .02 o Qs .12 .01 .08 0 ■ o % -4% .04 tf-./ 0 \~.2 •a | . Airfoil: N.A.C.A. 4212 R.N.:3.240,000 o . Size: S"x30" Vet.(ft/sec): 68.1. -/2 J- Pres.(sfnd.afm.):20.9 Date:l2-t0-3l ' Where… … Angle of attack, a (degrees) Z./7/ coefficient, G. Fiqtob 31.—N.A.O.A. 4306 airfoU.NASA Technical Reports Server (NTRS)
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