Wind-tunnel investigation of ordinary and split flaps on airfoils of different profile (1937)
NASA Technical Reports Server (NTRS) · leaf 4
OHDINAKT AND SPLIT FLAPS ON AIRFOILS OF DIFFERENT PROFILE 227 N. A. C. A. 23012 airfoil with 20-percent-ohord curves for 20-percent-chord split flaps are given in ordinaxy and split flaps.—Lift, drag, and center-of- figures 22 and 23. A comparison of ordinary and pressure characteristics are given… … d,degrees 6f, degrees Fioote 7.—Lift, drag, and center of pressure for the Olark Y airfoil with 0.10c fall-span Fiouhb 9.—Effect of flap deflection on marimnTn lift, and on lift-drag ratio and drag ordinary flap. Flap gap sealed. at mairlmnm lift. The 0.10c full-span ordinary flap on the Olark Y…
NASA Technical Reports Server (NTRS)
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