Summary Of Static Stability And Drag Characteristics Of Axisymmetric Low Drag Shapes For The Subsonic To Hypersonic Mach Number Range

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Supersonic Aerodynamic Characteristics of a Low-Drag Aircraft Configuration Having an Arrow Wing of Aspect Ratio 1.86 and a Body of Fineness Ratio 20

Author : Anonim
Publisher : Unknown
Page : 80 pages
File Size : 43,5 Mb
Release : 1960
Category : Aerodynamics, Supersonic
ISBN : NASA:31769000457039

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Supersonic Aerodynamic Characteristics of a Low-Drag Aircraft Configuration Having an Arrow Wing of Aspect Ratio 1.86 and a Body of Fineness Ratio 20 by Anonim Pdf

A free-flight rocket-propelled-model investigation was conducted at Mach numbers of 1.2 to 1.9 to determine the longitudinal and lateral aero-dynamic characteristics of a low-drag aircraft configuration. The model consisted of an aspect-ratio -1.86 arrow wing with 67.5 deg. leading-edge sweep and NACA 65A004 airfoil section and a triangular vertical tail with 60 deg. sweep and NACA 65A003 section in combination with a body of fineness ratio 20. Aerodynamic data in pitch, yaw, and roll were obtained from transient motions induced by small pulse rockets firing at intervals in the pitch and yaw directions. From the results of this brief aerodynamic investigation, it is observed that very slender body shapes can provide increased volumetric capacity with little or no increase in zero-lift drag and that body fineness ratios of the order of 20 should be considered in the design of long-range supersonic aircraft. The zero-lift drag and the drag-due-to-lift parameter of the test configuration varied linearly with Mach number. The maximum lift-drag ratio was 7.0 at a Mach number of 1.25 and decreased slightly to a value of 6.6 at a Mach number of 1.81. The optimum lift coefficient, normal-force-curve slope, lateral-force-curve slope, static stability in pitch and yaw, time to damp to one-half amplitude in pitch and yaw, the sum of the rotary damping derivatives in pitch and also in yaw, and the static rolling derivatives all decreased with an increase in Mach number. Values of certain rolling derivatives were obtained by application of the least-squares method to the differential equation of rolling motion. A comparison of the experimental and calculated total rolling-moment-coefficient variation during transient oscillations of the model indicated good agreement when the damping-in-roll contribution was included with the static rolling-moment terms.

Index of N A S A Technical Publications

Author : United States. National Aeronautics and Space Administration
Publisher : Unknown
Page : 448 pages
File Size : 41,6 Mb
Release : 1960
Category : Electronic
ISBN : OSU:32435029092020

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Index of N A S A Technical Publications by United States. National Aeronautics and Space Administration Pdf

Technical Publications Announcements with Indexes

Author : United States. National Aeronautics and Space Administration
Publisher : Unknown
Page : 1318 pages
File Size : 54,9 Mb
Release : 1962
Category : Aeronautics
ISBN : MINN:31951D00118674L

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Technical Publications Announcements with Indexes by United States. National Aeronautics and Space Administration Pdf

U.S. Government Research Reports

Author : Anonim
Publisher : Unknown
Page : 1064 pages
File Size : 42,6 Mb
Release : 1961
Category : Science
ISBN : OSU:32435022153597

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U.S. Government Research Reports by Anonim Pdf

Index to NASA Technical Publications

Author : United States. National Aeronautics and Space Administration
Publisher : Unknown
Page : 128 pages
File Size : 54,5 Mb
Release : 1960-07
Category : Electronic
ISBN : STANFORD:36105024165701

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Index to NASA Technical Publications by United States. National Aeronautics and Space Administration Pdf

Technical Abstract Bulletin

Author : Defense Documentation Center (U.S.)
Publisher : Unknown
Page : 1540 pages
File Size : 44,5 Mb
Release : 1961-10
Category : Military art and science
ISBN : UTEXAS:059172131213043

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Technical Abstract Bulletin by Defense Documentation Center (U.S.) Pdf

NASA Scientific and Technical Reports

Author : United States. National Aeronautics and Space Administration Scientific and Technical Information Division
Publisher : Unknown
Page : 448 pages
File Size : 46,5 Mb
Release : 1968
Category : Aeronautics
ISBN : STANFORD:36105024714912

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NASA Scientific and Technical Reports by United States. National Aeronautics and Space Administration Scientific and Technical Information Division Pdf

A Selected Listing of NASA Scientific and Technical Reports

Author : United States. National Aeronautics and Space Administration. Scientific and Technical Information Division
Publisher : Unknown
Page : 438 pages
File Size : 43,6 Mb
Release : 1968
Category : Aeronautics
ISBN : CORNELL:31924057848842

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A Selected Listing of NASA Scientific and Technical Reports by United States. National Aeronautics and Space Administration. Scientific and Technical Information Division Pdf

International Aerospace Abstracts

Author : Anonim
Publisher : Unknown
Page : 1016 pages
File Size : 52,8 Mb
Release : 1999
Category : Aeronautics
ISBN : STANFORD:36105021810432

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International Aerospace Abstracts by Anonim Pdf

Aeronautical Engineering

Author : Anonim
Publisher : Unknown
Page : 538 pages
File Size : 41,5 Mb
Release : 1991
Category : Aeronautics
ISBN : UOM:39015023295143

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Aeronautical Engineering by Anonim Pdf

Lift and Drag Characteristics at Subsonic Speeds and at a Mach Number of 1.9 of a Lifting Circular Cylinder with a Fineness Ratio of 10

Author : Vernard E. Lockwood,Linwood W. McKinney
Publisher : Unknown
Page : 26 pages
File Size : 40,8 Mb
Release : 1959
Category : Aerodynamics, Supersonic
ISBN : UIUC:30112106590307

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Lift and Drag Characteristics at Subsonic Speeds and at a Mach Number of 1.9 of a Lifting Circular Cylinder with a Fineness Ratio of 10 by Vernard E. Lockwood,Linwood W. McKinney Pdf