Low-Speed Wind-Tunnel Investigation of a Porous Forebody and Nose Strakes for Yaw Control of a Multirole Fighter Aircraft

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722620820
Total Pages : 92 pages
Book Rating : 4.6/5 (28 download)

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Book Synopsis Low-Speed Wind-Tunnel Investigation of a Porous Forebody and Nose Strakes for Yaw Control of a Multirole Fighter Aircraft by : National Aeronautics and Space Administration (NASA)

Download or read book Low-Speed Wind-Tunnel Investigation of a Porous Forebody and Nose Strakes for Yaw Control of a Multirole Fighter Aircraft written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-08 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low-speed wind-tunnel tests were conducted in the Langley 12-Foot Low-Speed Tunnel on a model of the Boeing Multirole Fighter (BMRF) aircraft. This single-seat, single-engine configuration was intended to be an F-16 replacement that would incorporate many of the design goals and advanced technologies of the F-22. Its mission requirements included supersonic cruise without afterburner, reduced observability, and the ability to attack both air-to-air and air-to-ground targets. So that it would be effective in all phases of air combat, the ability to maneuver at angles of attack up to and beyond maximum lift was also desired. Traditional aerodynamic yaw controls, such as rudders, are typically ineffective at these higher angles of attack because they are usually located in the wake from the wings and fuselage. For this reason, this study focused on investigating forebody-mounted controls that produces yawing moments by modifying the strong vortex flowfield being shed from the forebody at high angles of attack. Two forebody strakes were tested that varied in planform and chordwise location. Various patterns of porosity in the forebody skin were also tested that differed in their radial coverage and chordwise location. The tests were performed at a dynamic pressure of 4 lb/ft(exp 2) over an angle-of-attack range of -4 deg to 72 deg and a sideslip range of -10 deg to 10 deg. Static force data, static pressures on the surface of the forebody, and videotapes of flow-visualization using laser-illuminated smoke were obtained. Fears, Scott P. Unspecified Center...

Low-speed Wind-tunnel Investigation of a Porous Forebody and Nose Strakes for Yaw Control of a Multirole Fighter Aircraft

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ISBN 13 :
Total Pages : 96 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis Low-speed Wind-tunnel Investigation of a Porous Forebody and Nose Strakes for Yaw Control of a Multirole Fighter Aircraft by : Scott P. Fears

Download or read book Low-speed Wind-tunnel Investigation of a Porous Forebody and Nose Strakes for Yaw Control of a Multirole Fighter Aircraft written by Scott P. Fears and published by . This book was released on 1995 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Low-speed Wind-tunnel Investigation of a Porous Forebody and Nose Strakes for Yaw Control of a Multirole Fighter Aircraft

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ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.:/5 (331 download)

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Book Synopsis Low-speed Wind-tunnel Investigation of a Porous Forebody and Nose Strakes for Yaw Control of a Multirole Fighter Aircraft by : Scott P. Fears

Download or read book Low-speed Wind-tunnel Investigation of a Porous Forebody and Nose Strakes for Yaw Control of a Multirole Fighter Aircraft written by Scott P. Fears and published by . This book was released on 1995 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Technical Memorandum

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ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis NASA Technical Memorandum by :

Download or read book NASA Technical Memorandum written by and published by . This book was released on 1996 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NASA Langley Scientific and Technical Information Output, 1995

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ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis NASA Langley Scientific and Technical Information Output, 1995 by :

Download or read book NASA Langley Scientific and Technical Information Output, 1995 written by and published by . This book was released on 1996 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document is a compilation of the scientific and technical information that the Langley Research Center has produced during the calendar year 1995. Included are citations for formal reports, high-numbered conference publications, high-numbered technical memorandums, contractor reports, journal articles and other publications, meeting presentations, technical talks, computer programs, tech briefs, and patents.

Government Reports Announcements & Index

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ISBN 13 :
Total Pages : 790 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Government Reports Announcements & Index by :

Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 790 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Elegance in Flight

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Publisher :
ISBN 13 : 9781626830226
Total Pages : 328 pages
Book Rating : 4.8/5 (32 download)

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Book Synopsis Elegance in Flight by : Albert C. Piccirillo

Download or read book Elegance in Flight written by Albert C. Piccirillo and published by . This book was released on 2014 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Aerodynamic Principles of Flight Vehicles

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Publisher : AIAA (American Institute of Aeronautics & Astronautics)
ISBN 13 : 9781600869167
Total Pages : 0 pages
Book Rating : 4.8/5 (691 download)

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Book Synopsis Aerodynamic Principles of Flight Vehicles by : A. G. Panaras

Download or read book Aerodynamic Principles of Flight Vehicles written by A. G. Panaras and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In "Aerodynamic Principles of Flight Vehicles" Argyris Panaras examines the fundamentals of vortices and shock waves, aerodynamic estimation of lift and drag, airfoil theory, boundary layer control, and high-speed, high-temperature flow. Individual chapters address vortices in aerodynamics, transonic and supersonic flows, transonic/supersonic aircraft configurations, and high-supersonic/hypersonic flows, beginning with definitions and historical data, and then describing present-day status and current research challenges. Emphasis is given to flow control, to the evolution of flight vehicle shapes as flight speed has increased, and to discoveries that enabled breakthrough developments in flight. The book: examines why various equations and technologies were developed, explains major contributors in areas such as vortices and aircraft wakes, drag buildup, sonic boom, and shock wave-boundary layer interactions, among others, and helps readers apply concepts from the material to their own projects. Archival and encyclopedic, "Aerodynamic Principles of Flight Vehicles" is a superb reference for aeronautical students and professionals alike. Although most beneficial to readers with a working knowledge of aerodynamics, it is accessible to anyone with an introductory understanding of the field.

Aerodynamics for Engineers

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Publisher : Cambridge University Press
ISBN 13 : 1009115758
Total Pages : 843 pages
Book Rating : 4.0/5 (91 download)

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Book Synopsis Aerodynamics for Engineers by : John J. Bertin

Download or read book Aerodynamics for Engineers written by John J. Bertin and published by Cambridge University Press. This book was released on 2021-08-12 with total page 843 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now reissued by Cambridge University Press, this sixth edition covers the fundamentals of aerodynamics using clear explanations and real-world examples. Aerodynamics concept boxes throughout showcase real-world applications, chapter objectives provide readers with a better understanding of the goal of each chapter and highlight the key 'take-home' concepts, and example problems aid understanding of how to apply core concepts. Coverage also includes the importance of aerodynamics to aircraft performance, applications of potential flow theory to aerodynamics, high-lift military airfoils, subsonic compressible transformations, and the distinguishing characteristics of hypersonic flow. Supported online by a solutions manual for instructors, MATLAB® files for example problems, and lecture slides for most chapters, this is an ideal textbook for undergraduates taking introductory courses in aerodynamics, and for graduates taking preparatory courses in aerodynamics before progressing to more advanced study.

Scientific and Technical Aerospace Reports

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ISBN 13 :
Total Pages : 296 pages
Book Rating : 4.:/5 (3 download)

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Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1991 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Dynamics of Atmospheric Re-Entry

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Publisher : AIAA
ISBN 13 : 9781600860461
Total Pages : 616 pages
Book Rating : 4.8/5 (64 download)

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Book Synopsis Dynamics of Atmospheric Re-Entry by : Frank J. Regan

Download or read book Dynamics of Atmospheric Re-Entry written by Frank J. Regan and published by AIAA. This book was released on 1993 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:

F/A-18 Forebody Vortex Control. Volume 1

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723052477
Total Pages : 184 pages
Book Rating : 4.0/5 (524 download)

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Book Synopsis F/A-18 Forebody Vortex Control. Volume 1 by : National Aeronautics and Space Administration (NASA)

Download or read book F/A-18 Forebody Vortex Control. Volume 1 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: A wind tunnel test was conducted on a six percent model of the F/A-18 at the NASA Ames 7 X 10-Foot Low Speed Wind Tunnel. The primary objective of the test was to evaluate several forebody vortex control configurations at high angles of attack in order to determine the most effective method of obtaining well behaved yawing moments, in preparation for the rotary balance test. Both mechanical and pneumatic systems were tested. Single and dual rotating nose tip strakes and a vertical nose strake were tested at different sizes and deflections. A series of jet blowing configurations were located at various fuselage stations, azimuth angles, and pointing angles ranging from straight aft to 60 deg canted inboard. Slot blowing was investigated for several slot lengths and fuselage stations. The effect of blowing rate was tested for both of these pneumatic systems. The most effective configurations were then further tested with a variation of both sideslip angle and Reynolds number over a range of angles of attack from 0 to 60 deg. It was found that a very robust system can be developed that provides yawing moments at angles of attack up to 60 deg that significantly exceeds that available from 30 deg of rudder deflection (F/A-18 maximum) at 0 deg angle of attack. Kramer, Brian R. and Suarez, Carlos J. and Malcolm, Gerald N. and Ayers, Bert F. Unspecified Center AIRCRAFT CONTROL; ANGLE OF ATTACK; BLOWING; F-18 AIRCRAFT; FOREBODIES; STRAKES; VORTICES; WIND TUNNEL TESTS; BOUNDARY LAYER CONTROL; LATERAL CONTROL; REYNOLDS NUMBER; YAWING MOMENTS...

Airplane Stability and Control

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Publisher : Cambridge University Press
ISBN 13 : 1107320194
Total Pages : 417 pages
Book Rating : 4.1/5 (73 download)

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Book Synopsis Airplane Stability and Control by : Malcolm J. Abzug

Download or read book Airplane Stability and Control written by Malcolm J. Abzug and published by Cambridge University Press. This book was released on 2002-09-23 with total page 417 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the early machines to today's sophisticated aircraft, stability and control have always been crucial considerations. In this second edition, Abzug and Larrabee again forge through the history of aviation technologies to present an informal history of the personalities and the events, the art and the science of airplane stability and control. The book includes never-before-available impressions of those active in the field, from pre-Wright brothers airplane and glider builders through to contemporary aircraft designers. Arranged thematically, the book deals with early developments, research centers, the effects of power on stability and control, the discovery of inertial coupling, the challenge of stealth aerodynamics, a look toward the future, and much more. It is profusely illustrated with photographs and figures, and includes brief biographies of noted stability and control figures along with a core bibliography. Professionals, students, and aviation enthusiasts alike will appreciate this readable history of airplane stability and control.

F/A-18 Forebody Vortex Control. Volume 2

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Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723577345
Total Pages : 222 pages
Book Rating : 4.5/5 (773 download)

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Book Synopsis F/A-18 Forebody Vortex Control. Volume 2 by : National Aeronautics and Space Administration (NASA)

Download or read book F/A-18 Forebody Vortex Control. Volume 2 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-24 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: A rotary-balance wind tunnel test was conducted on a six percent model of the F/A-18 at the NASA Ames 7 X 10-Foot Low Speed Wind Tunnel. The data reduction was specially written for the test in National Instruments' LabVIEW. The data acquisition, reduction and analysis was performed with a Macintosh computer. The primary objective of the test was to evaluate the effectiveness of several forebody vortex control configurations in a rotary flow field. The devices that were found to be the most effective during the static tests (Volume 1) were investigated and included both mechanical and pneumatic configurations. The mechanical systems evaluated were small, single and dual, rotating nose tip strakes and a vertical nose strake. The jet blowing configuration used nozzles canted inboard 60 degrees. A two segment tangential slot was also evaluated. The different techniques were evaluated at angles of attack of 30 degrees, 45 degrees, 51 degrees, and 60 degrees. Sideslip and Reynolds number were varied for some of the configurations. All of the techniques proved to be effective in the rotating flow field. The vertical nose strake had the largest 'envelope' of effectiveness. Forebody vortex control provides large, robust yawing moments at medium to high angles of attack, even during combat maneuvers such as loaded roll. Kramer, Brian R. and Suarez, Carlos J. and Malcolm, Gerald N. and Ayers, Bert F. Unspecified Center NASA-CR-4582-VOL-2, A-94055-VOL-2, NAS 1.26:4582-VOL-2 NAS2-13383...

Low-Speed Wind Tunnel Testing

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Publisher : John Wiley & Sons
ISBN 13 : 0471557749
Total Pages : 738 pages
Book Rating : 4.4/5 (715 download)

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Book Synopsis Low-Speed Wind Tunnel Testing by : Jewel B. Barlow

Download or read book Low-Speed Wind Tunnel Testing written by Jewel B. Barlow and published by John Wiley & Sons. This book was released on 1999-02-22 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: A brand-new edition of the classic guide on low-speed wind tunnel testing While great advances in theoretical and computational methods have been made in recent years, low-speed wind tunnel testing remains essential for obtaining the full range of data needed to guide detailed design decisions for many practical engineering problems. This long-awaited Third Edition of William H. Rae, Jr.'s landmark reference brings together essential information on all aspects of low-speed wind tunnel design, analysis, testing, and instrumentation in one easy-to-use resource. Written by authors who are among the most respected wind tunnel engineers in the world, this edition has been updated to address current topics and applications, and includes coverage of digital electronics, new instrumentation, video and photographic methods, pressure-sensitive paint, and liquid crystal-based measurement methods. The book is organized for quick access to topics of interest, and examines basic test techniques and objectives of modeling and testing aircraft designs in low-speed wind tunnels, as well as applications to fluid motion analysis, automobiles, marine vessels, buildings, bridges, and other structures subject to wind loading. Supplemented with real-world examples throughout, Low-Speed Wind Tunnel Testing, Third Edition is an indispensable resource for aerospace engineering students and professionals, engineers and researchers in the automotive industries, wind tunnel designers, architects, and others who need to get the most from low-speed wind tunnel technology and experiments in their work.

Aircraft Dynamic Stability and Response

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Publisher : Elsevier
ISBN 13 : 1483140350
Total Pages : 247 pages
Book Rating : 4.4/5 (831 download)

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Book Synopsis Aircraft Dynamic Stability and Response by : A. W. Babister

Download or read book Aircraft Dynamic Stability and Response written by A. W. Babister and published by Elsevier. This book was released on 2013-10-22 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aircraft Dynamic Stability and Response deals with the fundamentals of dynamic stability in aircraft. Topics covered include flight dynamics, equations of motion, and lateral and longitudinal aerodynamic derivatives. Basic lateral and longitudinal motions are also considered. A non-dimensional system of notation is used, and problems are included at the end of chapters. This book is comprised of 13 chapters and begins with an introduction to aircraft static stability and maneuverability, with emphasis on the theoretical basis of flight dynamics and the technical terms used. The physical background for the estimation of aerodynamic derivatives is discussed. Subsequent chapters focus on the longitudinal and lateral motion of aircraft, including the effect of automatic control; modern developments such as the effects of aeroelasticity, dynamic coupling, and high incidence; and aircraft response to gusts. The final chapter demonstrates how to estimate the aerodynamic derivatives, and hence the dynamic stability characteristics, of a typical fighter aircraft. Throughout the text, the aircraft and its behavior are kept well to the fore. This monograph is intended for undergraduate students of aeronautical engineering and for newcomers to the aircraft industry.

Advanced Tactical Fighter to F-22 Raptor

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Publisher : AIAA
ISBN 13 : 9781600867903
Total Pages : 332 pages
Book Rating : 4.8/5 (679 download)

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Book Synopsis Advanced Tactical Fighter to F-22 Raptor by : David C. Aronstein

Download or read book Advanced Tactical Fighter to F-22 Raptor written by David C. Aronstein and published by AIAA. This book was released on 1998 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: