Effects of Some Leading-edge Modifications, Section and Plan-form Variations, and Vertical Position on Low-lift Wing Drag at Transonic and Supersonic Speeds PDF Download
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Author: Clement J. Welsh
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 28
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Book Description
Free-flight rocket-propelled model tests have been made to determine the effect of some wing geometry variables on low lift drag at Mach numbers from approximately 0.6 to 2.1. The pertinent results relate to 4- to 7-percent-thick 45 degree sweptback wings. At supersonic speeds, the wing drag was higher with the NACA 2-006 airfoil sections than with the NACA 65A006 airfoil sections particularly at the higher test Mach numbers where it was over 40 percent higher. Drooping the forward 20 percent of the wing 6 degrees increased the wing drag coefficient as much as 30 percent at supersonic speeds. Moving the wing vertically from the fuselage center line to the top of the fuselage increased the configuration drag substantially at supersonic speeds.
Author: Clement J. Welsh
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 28
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Book Description
Free-flight rocket-propelled model tests have been made to determine the effect of some wing geometry variables on low lift drag at Mach numbers from approximately 0.6 to 2.1. The pertinent results relate to 4- to 7-percent-thick 45 degree sweptback wings. At supersonic speeds, the wing drag was higher with the NACA 2-006 airfoil sections than with the NACA 65A006 airfoil sections particularly at the higher test Mach numbers where it was over 40 percent higher. Drooping the forward 20 percent of the wing 6 degrees increased the wing drag coefficient as much as 30 percent at supersonic speeds. Moving the wing vertically from the fuselage center line to the top of the fuselage increased the configuration drag substantially at supersonic speeds.
Author: Carl A. Sandahl
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 48
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Author: Robert L. Nelson
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 52
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Book Description
Summary: The experimental wave drags of bodies and wing-body combinations over a wide range of Mach numbers are compared with the computed drags utilizing a 24-term Fourier series application of the supersonic area rule and with the results of equivalent-body tests.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 476
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Book Description
Author: United States. Superintendent of Documents
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1714
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Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 860
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Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 448
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Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 494
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Author: William B. Pepper
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 28
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Author: United States. National Aeronautics and Space Administration
Publisher:
ISBN:
Category :
Languages : en
Pages : 208
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Book Description
