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Measurement Of Controlled Focused Sonic Booms From Maneuvering Aircraft
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Book Synopsis Measurement of Controlled Focused Sonic Booms from Maneuvering Aircraft by :
Download or read book Measurement of Controlled Focused Sonic Booms from Maneuvering Aircraft written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In April 1994, the USAF Armstrong Laboratory in cooperation with USAF Test Pilot School conducted a measurement study of controlled focus boom generated by supersonic maneuvers. The objective of this study was to collect focus and post focus booms and to assess the ability of aircrews to control the placement of the focal region during basic maneuvers. Forty-nine supersonic passes were flown and included level linear acceleration, level turn, accelerating dives and climbout/ pushover maneuvers. These flights were flown under calm and turbulent atmospheric conditions. Turbulent conditions had a defocusing effect which caused distortions in the focus region and resulted in smaller maximum overpressures. Sonic booms were collected by up to 25 Boom Event Analyzer Recorders (BEARs) placed in a 13,000 ft. linear array. The BEAR units were spaced 500 to 2,000 feet apart with the denser spacing at the expected focal region. This spacing was chosen to evaluate the thickness of both the focal and post-focal regions. Of the 49 flights, a docus boom was placed within the array 37 times and within approximately 3,000 feet of the target point 27 times demonstrating the ability to place controlled focus booms.
Book Synopsis Measurement of Controlled Focused Sonic Booms from Maneuvering Aircraft by : Micah Downing
Download or read book Measurement of Controlled Focused Sonic Booms from Maneuvering Aircraft written by Micah Downing and published by . This book was released on 1998 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: In April 1994, the USAF Armstrong Laboratory in cooperation with USAF Test Pilot School conducted a measurement study of controlled focus boom generated by supersonic maneuvers. The objective of this study was to collect focus and post focus booms and to assess the ability of aircrews to control the placement of the focal region during basic maneuvers. Forty-nine supersonic passes were flown and included level linear acceleration, level turn, accelerating dives and climbout/ pushover maneuvers. These flights were flown under calm and turbulent atmospheric conditions. Turbulent conditions had a defocusing effect which caused distortions in the focus region and resulted in smaller maximum overpressures. Sonic booms were collected by up to 25 Boom Event Analyzer Recorders (BEARs) placed in a 13,000 ft. linear array. The BEAR units were spaced 500 to 2,000 feet apart with the denser spacing at the expected focal region. This spacing was chosen to evaluate the thickness of both the focal and post-focal regions. Of the 49 flights, a docus boom was placed within the array 37 times and within approximately 3,000 feet of the target point 27 times demonstrating the ability to place controlled focus booms.
Book Synopsis Comparison of Measured and Calculated Sonic-boom Ground Patterns Due to Several Different Aircraft Maneuvers by : Donald L. Lansing
Download or read book Comparison of Measured and Calculated Sonic-boom Ground Patterns Due to Several Different Aircraft Maneuvers written by Donald L. Lansing and published by . This book was released on 1965 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The 1995 NASA High-Speed Research Program Sonic Boom Workshop by : Daniel G. Baize
Download or read book The 1995 NASA High-Speed Research Program Sonic Boom Workshop written by Daniel G. Baize and published by . This book was released on 1996 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sonic Booms from Aircraft in Maneuvers by : Domenic J. Maglieri
Download or read book Sonic Booms from Aircraft in Maneuvers written by Domenic J. Maglieri and published by . This book was released on 1964 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of the Response of Two Light Airplanes to Sonic Booms by : Domenic J. Maglieri
Download or read book Measurements of the Response of Two Light Airplanes to Sonic Booms written by Domenic J. Maglieri and published by . This book was released on 1963 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sonic Booms Resulting from Extremely Low-altitude Supersonic Flight: Measurements and Observations on Houses, Livestock and People by : C. W. Nixon
Download or read book Sonic Booms Resulting from Extremely Low-altitude Supersonic Flight: Measurements and Observations on Houses, Livestock and People written by C. W. Nixon and published by . This book was released on 1968 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sonic booms generated by F-4C aircraft flying low-level terrain- following profiles during Joint Task Force II operations near Tonopah, Nevada, were recorded under and near the flight tracks, and responses of structures, animals, and people were observed. Recorded overpressures up to 144 psf were analyzed, correlated with available aircraft operations data, and compared with data from different aircraft flying similar profiles. Observations of structures, animals, and people were correlated with the measured overpressures. Results include acquisition of near-field recordings of overpressures generated by the F-4C, the finding that some window glass fragments were propelled a short distance rather than falling directly below the window, an instance in which the measured overpressure of a sonic boom 1 mile to the side of the track far exceeded the predicted value, the finding that livestock (undetermined prior exposure to acoustic stimuli in this situation) did not respond adversely to the sonic booms, confirmation that very intense sonic booms do not harm people directly and the reaffirmation that the selection of site locations for low- level supersonic training missions will continue to pose a problem.
Book Synopsis Sonic-boom Research by : Harvey H. Hubbard
Download or read book Sonic-boom Research written by Harvey H. Hubbard and published by . This book was released on 1986 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis NASA's Contributions to Aeronautics: Aerodynamics, structures, propulsion, controls by :
Download or read book NASA's Contributions to Aeronautics: Aerodynamics, structures, propulsion, controls written by and published by . This book was released on 2010 with total page 980 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-volume collection of case studies on aspects of NACA-NASA research by noted engineers, airmen, historians, museum curators, journalists, and independent scholars. Explores various aspects of how NACA-NASA research took aeronautics from the subsonic to the hypersonic era.-publisher description.
Book Synopsis Measurements of Sonic Booms Generated by an Airplane Flying at Mach 3.5 and 4.8 by : Karen S. Green
Download or read book Measurements of Sonic Booms Generated by an Airplane Flying at Mach 3.5 and 4.8 written by Karen S. Green and published by . This book was released on 1974 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Numerical Study of the Effects of Aircraft Manoeuvers on the Focussing of Sonic Booms by : R. O. Onyeonwu
Download or read book A Numerical Study of the Effects of Aircraft Manoeuvers on the Focussing of Sonic Booms written by R. O. Onyeonwu and published by . This book was released on 1973 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of aircraft maneuvers on the focusing of sonic booms are investigated for a model atmosphere which is piecewise linear in wind and sound speeds, and piecewise constant in wind direction. Ray-tube areas and trajectories are obtained in closed form for a real atmosphere with winds and aircraft in arbitrary maneuvers. A mathematical formalism is developed for identifying the focusing ray in general maneuvers, leading to a direct and accurate determination of the caustic surface ground intercept. The algorithms derived in the analysis complement those of Hayes to form the basis for a computer program for predicting sonic boom properties. There appears to be a ten-fold reduction in computing time as compared with the Hayes-Haefeli program. (Modified author abstract).
Book Synopsis NASA's Contributions to Aeronautics by :
Download or read book NASA's Contributions to Aeronautics written by and published by . This book was released on 2010 with total page 980 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 1991 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Lower Bound of Attainable Sonic-boom Overpressure and Design Methods of Approaching this Limit by : Harry W. Carlson
Download or read book The Lower Bound of Attainable Sonic-boom Overpressure and Design Methods of Approaching this Limit written by Harry W. Carlson and published by . This book was released on 1962 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ground Measurements of Sonic-boom Pressures for the Altitude Range of 10,000 to 75,000 Feet by : Harvey H. Hubbard
Download or read book Ground Measurements of Sonic-boom Pressures for the Altitude Range of 10,000 to 75,000 Feet written by Harvey H. Hubbard and published by . This book was released on 1964 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Air Force, National Aeronautics and Space Administration, and Federal Aviation Agency have engaged in a joint research program for the purpose of measuring sonic-boom pressure signatures. These measurements are presented for several locations for flight tests of fighter and bomber airplanes in the altitude range from about 10,000 to 75,000 feet and at Mach numbers from 1.1 to 2.0. Data were obtained for a variety of atmospheric wind and temperature gradients and for various flight paths and acceleration rates.
Download or read book 03-3565 - 03-3612 written by and published by . This book was released on 2003 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lateral-spread Sonic-boom Ground-pressure Measurements from Airplanes at Altitudes to 75,000 Feet and at Mach Numbers to 2.0 by :
Download or read book Lateral-spread Sonic-boom Ground-pressure Measurements from Airplanes at Altitudes to 75,000 Feet and at Mach Numbers to 2.0 written by and published by . This book was released on 1963 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
