Rocket-powered-model Investigation of the Hinge-moment and Normal-force Characteristics of a Half-diamond Tip Control on a 60 Degree Sweptback Diamond Wind Between Mach Numbers of 0.5 and 1.3

Rocket-powered-model Investigation of the Hinge-moment and Normal-force Characteristics of a Half-diamond Tip Control on a 60 Degree Sweptback Diamond Wind Between Mach Numbers of 0.5 and 1.3

Author: James D. Church

Publisher:

Published: 1954

Total Pages: 30

ISBN-13:

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A free-flight investigation has been conducted to determine normal-force and hinge-moment characteristics of a half-diamond tip control on a diamond wing having 60 degree sweptback leading edges and 30 degree sweptforward trailing edges through a range of Mach number of 0.5 to 1.3. Results indicate that the control could be so hinged that very small hinge-moments due to control deflection would be obtained at low angles of attack over the speed range tested, although nonlinear variations of hinge moment with angle of attack were present in the transonic range.


Control-Surface Hinge-Moment Calculations for a High-Aspect-Ratio Supercritical Wing

Control-Surface Hinge-Moment Calculations for a High-Aspect-Ratio Supercritical Wing

Author: National Aeronautics and Space Adm Nasa

Publisher: Independently Published

Published: 2018-09-10

Total Pages: 28

ISBN-13: 9781720213932

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The hinge moments, at selected flight conditions, resulting from deflecting two trailing edge control surfaces (one inboard and one midspan) on a high aspect ratio, swept, fuel conservative wing with a supercritical airfoil are estimated. Hinge moment results obtained from procedures which employ a recently developed transonic analysis are given. In this procedure a three dimensional inviscid transonic aerodynamics computer program is combined with a two dimensional turbulent boundary layer program in order to obtain an interacted solution. These results indicate that trends of the estimated hinge moment as a function of deflection angle are similar to those from experimental hinge moment measurements made on wind tunnel models with swept supercritical wings tested at similar values of free stream Mach number and angle of attack. Perry, B., III Langley Research Center NASA-TM-78664, L-12219 RTOP 516-53-03-21


Aerodynamics, Aeronautics, and Flight Mechanics

Aerodynamics, Aeronautics, and Flight Mechanics

Author: Barnes W. McCormick

Publisher: John Wiley & Sons

Published: 1994-09-28

Total Pages: 677

ISBN-13: 0471575062

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A New Edition of the Most Effective Text/Reference in the Field! Aerodynamics, Aeronautics, and Flight Mechanics, Second Edition Barnes W. McCormick, Pennsylvania State University 57506-2 When the first edition of Aerodynamics, Aeronautics, and Flight Mechanics was published, it quickly became one of the most important teaching and reference tools in the field. Not only did generations of students learn from it, they continue to use it on the job-the first edition remains one of the most well-thumbed guides you'll find in an airplane company. Now this classic text/reference is available in a bold new edition. All new material and the interweaving of the computer throughout make the Second Edition even more practical and current than before! A New Edition as Complete and Applied as the First Both analytical and applied in nature, Aerodynamics, Aeronautics, and Flight Mechanics presents all necessary derivations to understand basic principles and then applies this material to specific examples. You'll find complete coverage of the full range of topics, from aerodynamics to propulsion to performance to stability and control. Plus, the new Second Edition boasts the same careful integration of concepts that was an acclaimed feature of the previous edition. For example, Chapters 9, 10, and 11 give a fully integrated presentation of static, dynamic, and automatic stability and control. These three chapters form the basis of a complete course on stability and control. New Features You'll Find in the Second Edition * A new chapter on helicopter and V/STOL aircraft- introduces a phase of aerodynamics not covered in most current texts * Even more material than the previous edition, including coverage of stealth airplanes and delta wings * Extensive use of the computer throughout- each chapter now contains several computer exercises * A computer disk with programs written by the author is available