Fuselage Drag Tests In The Variable Density Wind Tunnel

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Fuselage-drag Tests in the Variable-density Wind Tunnel

Ira H. A. Abbott
Fuselage drag Tests in the Variable density Wind Tunnel Book PDF

Author : Ira H. A. Abbott
Publisher : Unknown
Page : 576 pages
File Size : 48,7 Mb
Release : 1937
Category : Aeronautics
ISBN : STANFORD:36105024794781

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Fuselage-drag Tests in the Variable-density Wind Tunnel by Ira H. A. Abbott Pdf

Results are presented on drag tests of six bodies of revolution with systematically varying shapes and with a fineness ratio of 5. The formes were derived from source-sink distributions, and formulas are presented for the calculation of the pressure distributions of the forms. The tests were made in the N.A.C.A. variable-density tunnel over a range of values of Reynolds number from about 1,500,000 to 25,000,000. The results show that the bodies with the sharper noses and tails have the lowest drag coefficients are based on the two-thirds power of the volume. The data show the most important single characteristic of the body form to be the tail angle, which must be fine to obtain low drag.

Tests in the Variable Density Wind Tunnel to Investigate the Effects of Scale and Turbulence on Airfoil Characteristics

John Stack
Tests in the Variable Density Wind Tunnel to Investigate the Effects of Scale and Turbulence on Airfoil Characteristics Book PDF

Author : John Stack
Publisher : Unknown
Page : 556 pages
File Size : 48,8 Mb
Release : 1931
Category : Aerofoils
ISBN : STANFORD:36105024794765

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Tests in the Variable Density Wind Tunnel to Investigate the Effects of Scale and Turbulence on Airfoil Characteristics by John Stack Pdf

The effects of scale and turbulence on the lift and drag of five airfoils, the N.A.C.A. 0006 , the N.A.C.A. 0021, the Clark Y, The U.S.A 35-A, and the U.S.N. P.S.6, hve been investigated in the Variable Density Wind Tunnel. Tests were made over a wide scale for only two different conditions of turbulence.

Interference of Wing and Fuselage from Tests of 17 Combinations in the N.A.C.A. Variable-density Tunnel Combinations with Special Junctures

Albert Sherman
Interference of Wing and Fuselage from Tests of 17 Combinations in the N A C A Variable density Tunnel Combinations with Special Junctures Book PDF

Author : Albert Sherman
Publisher : Unknown
Page : 534 pages
File Size : 48,9 Mb
Release : 1938
Category : Aiprlanes
ISBN : STANFORD:36105024794799

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Interference of Wing and Fuselage from Tests of 17 Combinations in the N.A.C.A. Variable-density Tunnel Combinations with Special Junctures by Albert Sherman Pdf

As part of the wing-fuselage interferences investigation in progress in the N.A.C.A. variable-density wind tunnel, a method of eliminating the interference burble associated with critical midwing combinations was investigated. The interference burble of the critical midewing combination was shown to respond to modifications at the nose of the juncture and to be entirely suppressed with little or no adverse effect on the high-speed drag by special leading-edge fillets.

Tests of N.A.C.A. Airfoils in the Variable-density Wind Tunnel

Eastman Nixon Jacobs
Tests of N A C A Airfoils in the Variable density Wind Tunnel Book PDF

Author : Eastman Nixon Jacobs
Publisher : Unknown
Page : 534 pages
File Size : 50,5 Mb
Release : 1936
Category : Aerofoils
ISBN : STANFORD:36105024794658

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Tests of N.A.C.A. Airfoils in the Variable-density Wind Tunnel by Eastman Nixon Jacobs Pdf

The results of tests of six airfoils having the N.A.C.A. 230 mean line and varying in thickness from 0.06c to 0.21c are presented. These results agree with previous findings in showing that aerodynamically the best section is one of moderate thickness. The data are of value mainly in connection with the design of tapered wings having sections based on the N.A.C.A. 230 mean line.

Preliminary Wing Model Tests in the Variable Density Wind Tunnel of the National Advisory Committee for Aeronautics

D. W. Taylor,Harold E. Miller,J. W. Crowley,Max M. Munk,W. F. Durand,Walter Stuart Diehl,United States. National Advisory Committee for Aeronautics,E. P. Lesley,Edward G. Beardsley,Elton W. Miller,S. J. DeFrance
Preliminary Wing Model Tests in the Variable Density Wind Tunnel of the National Advisory Committee for Aeronautics Book PDF

Author : D. W. Taylor,Harold E. Miller,J. W. Crowley,Max M. Munk,W. F. Durand,Walter Stuart Diehl,United States. National Advisory Committee for Aeronautics,E. P. Lesley,Edward G. Beardsley,Elton W. Miller,S. J. DeFrance
Publisher : Unknown
Page : 212 pages
File Size : 48,6 Mb
Release : 1925
Category : Aeronautics
ISBN : OSU:32435063884258

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Preliminary Wing Model Tests in the Variable Density Wind Tunnel of the National Advisory Committee for Aeronautics by D. W. Taylor,Harold E. Miller,J. W. Crowley,Max M. Munk,W. F. Durand,Walter Stuart Diehl,United States. National Advisory Committee for Aeronautics,E. P. Lesley,Edward G. Beardsley,Elton W. Miller,S. J. DeFrance Pdf

The Characteristics of 78 Related Airfoil Section from Tests in the Variable-density Wind Tunnel

Eastman Nixon Jacobs,Kenneth Edwards Ward,United States. National Advisory Committee for Aeronautics,Robert McLean Pinkerton
The Characteristics of 78 Related Airfoil Section from Tests in the Variable density Wind Tunnel Book PDF

Author : Eastman Nixon Jacobs,Kenneth Edwards Ward,United States. National Advisory Committee for Aeronautics,Robert McLean Pinkerton
Publisher : Unknown
Page : 190 pages
File Size : 54,5 Mb
Release : 1933
Category : Aerofoils
ISBN : OSU:32435062184049

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The Characteristics of 78 Related Airfoil Section from Tests in the Variable-density Wind Tunnel by Eastman Nixon Jacobs,Kenneth Edwards Ward,United States. National Advisory Committee for Aeronautics,Robert McLean Pinkerton Pdf

Index of NACA Technical Publications

United States. National Advisory Committee for Aeronautics
Index of NACA Technical Publications Book PDF

Author : United States. National Advisory Committee for Aeronautics
Publisher : Unknown
Page : 616 pages
File Size : 42,9 Mb
Release : 1949
Category : Aeronautics
ISBN : MSU:31293201271115

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Index of NACA Technical Publications by United States. National Advisory Committee for Aeronautics Pdf

Index of NACA Reports Having Application to Personal Aircraft

United States. National Advisory Committee for Aeronautics
Index of NACA Reports Having Application to Personal Aircraft Book PDF

Author : United States. National Advisory Committee for Aeronautics
Publisher : Unknown
Page : 32 pages
File Size : 53,9 Mb
Release : 1946
Category : Aeronautics
ISBN : STANFORD:36105211526244

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Index of NACA Reports Having Application to Personal Aircraft by United States. National Advisory Committee for Aeronautics Pdf

Aerodynamic Characteristics of a Large Number of Airfoils Tested in the Variable-density Wind Tunnel

Isadore Edward Garrick,Robert McLean Pinkerton,United States. National Advisory Committee for Aeronautics,Harry Greenberg
Aerodynamic Characteristics of a Large Number of Airfoils Tested in the Variable density Wind Tunnel Book PDF

Author : Isadore Edward Garrick,Robert McLean Pinkerton,United States. National Advisory Committee for Aeronautics,Harry Greenberg
Publisher : Unknown
Page : 72 pages
File Size : 52,7 Mb
Release : 1938
Category : Aerodynamic measurements
ISBN : OSU:32435063884001

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Aerodynamic Characteristics of a Large Number of Airfoils Tested in the Variable-density Wind Tunnel by Isadore Edward Garrick,Robert McLean Pinkerton,United States. National Advisory Committee for Aeronautics,Harry Greenberg Pdf

Wind Tunnel Tests of Fuselages and Windscreens

Edward Pearson Warner
Wind Tunnel Tests of Fuselages and Windscreens Book PDF

Author : Edward Pearson Warner
Publisher : Unknown
Page : 552 pages
File Size : 51,6 Mb
Release : 1925
Category : Aerodynamics
ISBN : STANFORD:36105024794633

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Wind Tunnel Tests of Fuselages and Windscreens by Edward Pearson Warner Pdf

The tests described herein were made in 1918, in the old four-foot wind tunnel at the Massachusetts Institute of Technology and at the request of the Engineering Division of the U.S. Army Air Service.

Technical Note - National Advisory Committee for Aeronautics

United States. National Advisory Committee for Aeronautics
Technical Note National Advisory Committee for Aeronautics Book PDF

Author : United States. National Advisory Committee for Aeronautics
Publisher : Unknown
Page : 136 pages
File Size : 41,7 Mb
Release : 1926
Category : Aeronautics
ISBN : OSU:32435067595090

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Technical Note - National Advisory Committee for Aeronautics by United States. National Advisory Committee for Aeronautics Pdf

Technical Note - National Advisory Committee for Aeronautics

United States. National Advisory Committee for Aeronautics
Technical Note National Advisory Committee for Aeronautics Book PDF

Author : United States. National Advisory Committee for Aeronautics
Publisher : Unknown
Page : 900 pages
File Size : 47,9 Mb
Release : 2024-06-29
Category : Aeronautics
ISBN : RUTGERS:39030037540970

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Technical Note - National Advisory Committee for Aeronautics by United States. National Advisory Committee for Aeronautics Pdf

Low-speed Static Wind-tunnel Investigation of a Half-span Fuselage and Variable-sweep Pressure Wing Model

John E. Lamar,L. Wayne McKinney
Low speed Static Wind tunnel Investigation of a Half span Fuselage and Variable sweep Pressure Wing Model Book PDF

Author : John E. Lamar,L. Wayne McKinney
Publisher : Unknown
Page : 332 pages
File Size : 50,9 Mb
Release : 1971
Category : Airplanes
ISBN : UIUC:30112106882464

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Low-speed Static Wind-tunnel Investigation of a Half-span Fuselage and Variable-sweep Pressure Wing Model by John E. Lamar,L. Wayne McKinney Pdf

The experimental balance and pressure data obtained from tests of an untwisted variable-sweep wing with an outboard pivot exhibited nonlinearities in both total normalforce-coefficient and pitching-moment-coefficient curves for all sweep angles and fuselage conditions. These total effects have been traced back through the section data and pressure distributions to find the causes. The causes of these nonlinearities were found to be (1) separation of flow on the outer panel and (2) a leading-edge vortex flow on the inner panel. A fuselage added to the wing had little effect on the aerodynamic characteristics. Predictions of wing loadings and performance characteristics were made by using the modified Multhopp method and a comparison with experimental results indicated reasonable agreement. The changes in span loading as a result of leading-edge shed-vortex formation and flow separation at the higher angles of attack caused an increase in the induced-drag parameter.