NASA MemorandumNational Aeronautics and Space Administration, 1959 - Aeronautics |
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Common terms and phrases
angle of attack based on slipstream camber change in velocity CHARACTERISTICS OF PROPELLER-WING-FLAP CL,S correlation of slipstream cos(e Cr,s CT,s Cx,s data at zero Direct thrust contribution Downward for Vertical downwash angle DRAG CHARACTERISTICS drag coefficient due to wing dynamic pressure effect of propeller estimating the lift flap deflection Fowler flap free-stream velocity increment of velocity Induced Drag Kuhn Langley Field Large-Chord larger stream tube lift and drag lift augmentation lift coefficient lift force lift-curve slope longitudinal force longitudinal-force coefficient momentum theory NACA TN NASA MEMO Plain flap power-off conditions power-off lift PROCEDURE FOR ESTIMATING Propeller Slipstreams Downward propeller thrust PROPELLER-WING-FLAP CONFIGURATIONS Richard Richard E SEMIEMPIRICAL PROCEDURE sliding flaps slipstream deflection data speed range stall STOL airplanes stream tube affected thrust axis Thrust coefficient thrust recovery turning angle unpublished data Vertical Take-Off VTOL Wing and Propellers wing-flap zero forward speed
Popular passages
Page 17 - C., Jr.: Wind-Tunnel Investigation of Effect of Propeller Slipstreams on Aerodynamic Characteristics of a Wing Equipped With a 50-Percent-Chord Sliding Flap and a 30-Percent-Chord Slotted Flap. NACA TN 3918, 19575.
Page 17 - Maestrello, L. — UTIA Air Duct Facility for Investigation of Vibration Noise Induced by Turbulent Flow Past a Panel (Boundary Layer Noise) (April 1958).