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In Flight Wing Pressure Distributions For The Nasa F A 18a High Alpha Research Vehicle
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Book Synopsis In-flight Wing Pressure Distributions for the NASA F/A-18A High Alpha Research Vehicle by : Mark C. Davis
Download or read book In-flight Wing Pressure Distributions for the NASA F/A-18A High Alpha Research Vehicle written by Mark C. Davis and published by . This book was released on 2000 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pressure distributions on the wings of the F/A-18A High Alpha Research Vehicle (HARV) were obtained using both flush-mounted pressure orifices and surface-mounted pressure tubing. During quasi-stabilized 1-g flight, data were gathered at ranges for angle of attack from 5 to 70 degrees, for angle of sideslip from -12 to +12 degrees, and for Mach from 0.23 to 0.64, at various engine settings, and with and without the leading edge extension fence installed. Angle of attack strongly influenced the wing pressure distribution, as demonstrated by a distinct flow separation pattern that occurred between the range from 15 to 30 degrees. Influence was seen on the outboard portion of the wing. Angle-of-sideslip influence on wing pressure distribution was strongest at low angle of attack. Influence of Mach number was observed in the regions of local supersonic flow, diminshing as angle of attack was increased. Engine throttle setting had little influence on the wing pressure distribution.
Author :National Aeronautics and Space Adm Nasa Publisher :Independently Published ISBN 13 :9781723851636 Total Pages :68 pages Book Rating :4.8/5 (516 download)
Book Synopsis In-Flight Wing Pressure Distributions for the NASA F/A-18a High Alpha Research Vehicle by : National Aeronautics and Space Adm Nasa
Download or read book In-Flight Wing Pressure Distributions for the NASA F/A-18a High Alpha Research Vehicle written by National Aeronautics and Space Adm Nasa and published by Independently Published. This book was released on 2018-09-20 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pressure distributions on the wings of the F/A-18A High Alpha Research Vehicle (HARV) were obtained using both flush-mounted pressure orifices and surface-mounted pressure tubing. During quasi-stabilized 1-g flight, data were gathered at ranges for angle of attack from 5 deg to 70 deg, for angle of sideslip from -12 deg to +12 deg, and for Mach from 0.23 to 0.64, at various engine settings, and with and without the leading edge extension fence installed. Angle of attack strongly influenced the wing pressure distribution, as demonstrated by a distinct flow separation pattern that occurred between the range from 15 deg to 30 deg. Influence by the leading edge extension fence was evident on the inboard wing pressure distribution, but little influence was seen on the outboard portion of the wing. Angle-of-sideslip influence on wing pressure distribution was strongest at low angle of attack. Influence of Mach number was observed in the regions of local supersonic flow, diminishing as angle of attack was increased. Engine throttle setting had little influence on the wing pressure distribution.Davis, Mark C. and Saltzman, John A.Armstrong Flight Research CenterWINGS; PRESSURE DISTRIBUTION; WIND TUNNEL TESTS; F-18 AIRCRAFT; RESEARCH VEHICLES; LIFT; ORIFICES; SUPERSONIC FLOW; BOUNDARY LAYER SEPARATION; DATA REDUCTION; COMPUTATIONAL FLUID DYNAMICS; PIPES (TUBES); FLOW VISUALIZATION; FLIGHT TESTS; ANGLE OF ATTACK
Book Synopsis Measured and Predicted Pressure Distributions on the AFTI/F-111 Mission Adaptive Wing by : Lannie D. Webb
Download or read book Measured and Predicted Pressure Distributions on the AFTI/F-111 Mission Adaptive Wing written by Lannie D. Webb and published by . This book was released on 1988 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1995 with total page 1484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1995 with total page 1482 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Reynolds Number Effects at High Angles of Attack by : David F. Fisher
Download or read book Reynolds Number Effects at High Angles of Attack written by David F. Fisher and published by . This book was released on 1998 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lessons learned from comparision between ground-based tests and flight measurements for the high-angle-of-attack programs on the F-18 High Alpha Research Vehicle (HARV), the X-29 forward-swept wing aircraft, and the X-31 enhanced fighter maneuverability aircraft are presented. On all three vehicles, Reynolds number effects were evident on the forebodies at high angles of attack. The correlation between flight and wind tunnel forebody pressure distributions for the F-18 HARV were improved by using twin longitudinal grit strips on the forebody of the wind-tunnel model. Pressure distributions obtained on the X-29 wind-tunnel model at flight Reynolds numbers showed excellent correlation with the flight data up to [alpha]=50 deg. Above [alpha]=50 deg. the pressure distributions for both flight and wind tunnel became asymmetric and showed poorer agreement, possibly because of the different surface finish of the model and aircraft. The detrimental effect of a very sharp nose apex was demonstrated on the X-31 aircraft. Grit strips on the forebody of the X-31 reduced the randomness but increased the magnitude of the asymmetry. Nose strakes were required to reduce the forebody yawing moment asymmetries and the grit strips on the flight test noseboom improved the aircraft.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1992 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NASA Aerodynamics Program, Annual Report 1991 by :
Download or read book NASA Aerodynamics Program, Annual Report 1991 written by and published by . This book was released on 1992 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flying beyond the stall by : Douglas A. Joyce
Download or read book Flying beyond the stall written by Douglas A. Joyce and published by . This book was released on 2014 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: The X-31 Enhanced Fighter Maneuverability Demonstrator was unique among experimental aircraft. A joint effort of the United States and Germany, the X-31 was the only X-plane to be designed, manufactured, and flight tested as an international collaboration. It was also the only X-plane to support two separate test programs conducted years apart, one administered largely by NASA and the other by the U.S. Navy, as well as the first X-plane ever to perform at the Paris Air Show. Flying Beyond the Stall begins by describing the government agencies and private-sector industries involved in the X-31 program, the genesis of the supermaneuverability concept and its initial design breakthroughs, design and fabrication of two test airframes, preparation for the X-31's first flight, and the first flights of Ship #1 and Ship #2. Subsequent chapters discuss envelope expansion, handling qualities (especially at high angles of attack), and flight with vectored thrust. The book then turns to the program's move to NASA's Dryden Flight Research Center and actual flight test data. Additional tasking, such as helmet-mounted display evaluations, handling quality studies, aerodynamic parameter estimation, and a "tailless" study are also discussed.The book describes how, in the aftermath of a disastrous accident with Ship #1 in 1995, Ship #2 was prepared for its outstanding participation in the Paris Air Show. The aircraft was then shipped back to Edwards AFB and put into storage until the late 1990s, when it was refurbished for participation in the U. S. Navy's VECTOR program. The book ends with a comprehensive discussion of lessons learned and includes an Appendix containing detailed information.
Book Synopsis Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 325) by :
Download or read book Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 325) written by and published by . This book was released on 1995 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis High-Alpha Handling Qualities Flight Research on the NASA F/A-18 High Alpha Research Vehicle by : Keith D. Wichman
Download or read book High-Alpha Handling Qualities Flight Research on the NASA F/A-18 High Alpha Research Vehicle written by Keith D. Wichman and published by . This book was released on 1996 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Beyond Tube-and-Wing by : Bruce Larrimer
Download or read book Beyond Tube-and-Wing written by Bruce Larrimer and published by . This book was released on 2020-06-15 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Smell of Kerosene by : National Aeronautics and Space Administration
Download or read book The Smell of Kerosene written by National Aeronautics and Space Administration and published by DigiCat. This book was released on 2022-11-13 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book puts the reader in the pilot's seat for a "day at the office" unlike any other. The Smell of Kerosene tells the dramatic story of a NASA research pilot who logged over 11,000 flight hours in more than 125 types of aircraft. Donald Mallick gives the reader fascinating first-hand description of his early naval flight training, carrier operations, and his research flying career with NASA. After transferring to the NASA Flight Research Center, Mallick became involved with projects that further pushed the boundaries of aerospace technology. These included the giant delta-winged XB-70 supersonic airplane, the wingless M2-F1 lifting body vehicle, and triple-sonic YF-12 Blackbird. Mallick also test flew the Lunar Landing Research Vehicle and helped develop techniques used in training astronauts to land on the Moon.
Download or read book NASA Aerodynamics Program written by and published by . This book was released on 1992 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722226633 Total Pages :44 pages Book Rating :4.2/5 (266 download)
Book Synopsis F-16xl Wing Pressure Distributions and Shock Fence Results from Mach 1.4 to Mach 2.0 by : National Aeronautics and Space Administration (NASA)
Download or read book F-16xl Wing Pressure Distributions and Shock Fence Results from Mach 1.4 to Mach 2.0 written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-03 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chordwise pressure distributions were obtained in-flight on the upper and lower surfaces of the F-16XL ship 2 aircraft wing between Mach 1.4 and Mach 2.0. This experiment was conducted to determine the location of shock waves which could compromise or invalidate a follow-on test of a large chord laminar flow control suction panel. On the upper surface, the canopy closure shock crossed an area which would be covered by a proposed laminar flow suction panel. At the laminar flow experiment design Mach number of 1.9, 91 percent of the suction panel area would be forward of the shock. At Mach 1.4, that value reduces to 65 percent. On the lower surface, a shock from the inlet diverter would impinge on the proposed suction panel leading edge. A chordwise plate mounted vertically to deflect shock waves, called a shock fence, was installed between the inlet diverter and the leading edge. This plate was effective in reducing the pressure gradients caused by the inlet shock system. Landers, Stephen F. and Saltzman, John A. and Bjarke, Lisa J. Armstrong Flight Research Center RTOP 529-31-24...
Book Synopsis Wing Pressure Distribution and Boundary Layer Data Obtained from C-5A Flight Testing by : Jones F. Cahill
Download or read book Wing Pressure Distribution and Boundary Layer Data Obtained from C-5A Flight Testing written by Jones F. Cahill and published by . This book was released on 1974 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analyses have been conducted of wing pressure distribution and boundary layer data obtained from flight tests of a C-5 airplane at Reynolds numbers from 35 to 90 million. Results showed that shock locations at high subsonic Mach numbers are as much as 10 to 12 percent chord aft of those measured in previous wind tunnel tests at 7.4 million Reynolds number. No consistent variation in shock location with Reynolds number within the range covered by the flight data can be detected, however. Considered of the boundary layer data in conjunction with the pressure measurements would indicate that this absence of scale effects at high Reynolds number results from the fact that trailing-edge separation is suppressed to the extent that separation at the shock is the dominant factor leading to flow breakdown.
