Flight Tests to Determine the Effect of Taper on the Zero-lift Drag of Wings at Low Supersonic Speeds PDF Download
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Author: Sidney R. Alexander
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 8
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Book Description
Tests were conducted on wings having taper ratios from 0 to 1 mounted on rocket propelled test bodies to determine the effect of taper on the zero lift drag of wings at low supersonic speeds. Detailed data on models and test conditions are provided. comparison is made between results of theoretical drag calculations of tapered wings and applicable experimental values derived. Maximum thickness, leading edge, and trailing edge sweep are used in determining drag coefficient. At a constant leading edge sweep of 45 degree, no orderly variation of drag coefficient with taper ratio occurs.
Author: Sidney R. Alexander
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 8
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Book Description
Tests were conducted on wings having taper ratios from 0 to 1 mounted on rocket propelled test bodies to determine the effect of taper on the zero lift drag of wings at low supersonic speeds. Detailed data on models and test conditions are provided. comparison is made between results of theoretical drag calculations of tapered wings and applicable experimental values derived. Maximum thickness, leading edge, and trailing edge sweep are used in determining drag coefficient. At a constant leading edge sweep of 45 degree, no orderly variation of drag coefficient with taper ratio occurs.
Author: Murray Pittel
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 20
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Book Description
Rocket-powered models have been flown to provide an experimental comparison with linearized theoretical calculations for zero-lift drag of sweptback tapered wings having thin, symmetrical, double-wedge airfoil sections. The range of the experimental data is from a Mach number M of 1.0 to 1.8, and theoretical comparisons are made for the test range above M = 1.2.
Author: Murray Pittel
Publisher:
ISBN:
Category : Aerodynamics, Supersonic
Languages : en
Pages : 23
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Book Description
Rocket-powered models have been flown to provide an experimental comparison with linearized theoretical calculations for zero-lift drag of sweptback tapered wings having thin, symmetrical, double-wedge airfoil sections. The range of the experimental data is from Mach number 1.0 to 1.8, and theoretical comparisons are made for the test range above M = 1.2.
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1142
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Book Description
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 388
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Book Description
Author: Harry H. Heyson
Publisher:
ISBN:
Category : Air flow
Languages : en
Pages : 696
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Book Description
Results of an investigation in the Langley full-scale tunnel of the induced flow near a lifting rotor are given. Measurements of stream angles and velocities were made in several transverse planes along and behind the rotor in four different conditions representative of the cruising and high-speed ranges of flight. These measurements indicate that available theory may be used to calculate with reasonable accuracy the induced flow over the forward three-quarters of the disk for these flight conditions provided that a realistic nonuniform rotor disk-load distribution is assumed. Rearward of the three-quarter-diameter point, calculations of the induced velocity are increasingly inaccurate due to the rolling up of the trailing-vortex system. Farther rearward, well behind the rotor, the flow may be represented more accurately by the flow behind a uniformly loaded wing.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 818
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Author:
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 630
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Book Description
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 462
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Book Description
Author: United States. National Advisory Committee for Aeronautics
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 508
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Book Description
