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William H. McAvoy
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・ William H. Mellen
・ William H. Meyer


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William H. McAvoy : ウィキペディア英語版
William H. McAvoy
William H. "Bill" McAvoy was a civilian test pilot in the 1920s and 1930s for the National Advisory Committee for Aeronautics at the Langley Memorial Aeronautical Laboratory, Langley Field, Virginia, and in 1940 helped start the flight operations division at the Ames Research Center, California. 〔Hansen, James R., "Engineer In Charge", NASA SP-4305, page 164.〕
==Life==
He had served in the U.S. Army from 1917 to 1921. 〔http://www.accident-report.com/so/som.html〕
Employed by NACA by 1929, McAvoy was one of several pilots, including Melvin N. Gough, Edmund T. "Eddie" Allen, and Thomas Carroll that NACA trained "in stability and control research techniques, including the ability to reach and hold equilibrium flight conditions with accuracy. As with all good research test pilots, the NACA group worked closely with flight test engineers and in fact took part in discussing NACA’s flying qualities work with outsiders. All of this helped lay the groundwork for the comprehensive flying qualities research that followed." 〔Abzug, Malcolm J., and Larrabee, E. Eugene, "
Airplane Stability and Control: A History of the Technologies That Made Aviation Possible" Second Edition, Cambridge University Press, Cambridge, UK, 2002, Library of Congress card number 200105284, ISBN 0-521-80992-4, Chapter 3.1, pages 21-22.〕
McAvoy was involved in the testing of many different aircraft types at the Langley Field facilities near Hampton, Virginia, including the third of the Grumman XF3F-1 prototypes, BuNo ''9727'' (3rd), rebuilt from the wreckage of the second prototype which crashed at NAS Anacostia, Washington, D.C., on 17 May 1935.〔 Boyne, Walt, "Test Pilot", ''Airpower'', Granada Hills, California, September 1974, Volume 4, Number 5, p. 52.〕
On 15 October 1929, McAvoy was testing the Martin XT5M-1 divebomber, BuNo ''A-8051'', when, during terminal dive test at 350 IAS at 8,000 feet, the lower starboard wing caved in, ripping an extensive hole. McAvoy staggered the aircraft back to the Martin field north of Baltimore, Maryland, landing at 110 mph with full-left stick input and thereby saving the machine. The aircraft would go into production as the BM-1. 〔"Diving Two Miles in an 'Egg-Laying' Bombing Plane", ''Modern Mechanics'', December 1930, pages 144-145.〕〔Boyne, Walt, "Test Pilot", ''Airpower'', Granada Hills, California, September 1974, Volume 4, Number 5, pp.36, 40.〕
In July 1931, McAvoy and Melvin Gough conducted a series of tests on America's first autogyro, the Pitcairn PCA-2, NACA 44.〔http://www.hq.nasa.gov/pao/History/SP-4305/app-e.htm〕 The test series was the first to yield quantitative data on the handling qualities of the forerunner of the helicopter.〔Chambers, Mark A., "Flight Research at NASA Langley Research Center", Arcadia Publishing, Charleston, South Carolina, 2007, Library of Congress card number 2006940726, ISBN 978-0-7385-4437-3, page 24.〕
McAvoy also handled the first flight of the Grumman XFF-1,〔Meyer, Corwin H., "Corky Meyer's Flight Journal: A Test Pilot's Tales of Dodging Disasters - Just in Time", Specialty Press, North Branch, Minnesota, 2006, ISBN 978-1-58007-203-8, page 100.〕 on 29 December 1931.〔Jones, Lloyd S., "U.S. Naval Fighters", Aero Publishers, Inc., Fallbrook, California, 1977, Library of Congress card number 77-20693, ISBN 0-8168-9254-7, page 92.〕 He conducted the majority of the flight testing of the design in 1932.〔Chambers, Mark A., "Flight Research at NASA Langley Research Center", Arcadia Publishing, Charleston, South Carolina, 2007, Library of Congress card number 2006940726, ISBN 978-0-7385-4437-3, page 27.〕
On the first flight of the United States Navy Hall XP2H-1 four-engine flying boat, BuNo ''A-8729'', at NAS Anacostia, Washington, D.C., on 15 November 1932, it nosed straight up on take-off due to an incorrectly rigged stabilizer. Test pilot Bill McAvoy and the aircraft's designer, Charles Ward Hall, Sr., managed to chop the throttles, with the plane settling back onto the surface of the river, suffering only minor damage. This sole prototype was the largest four-engine biplane the U.S. Navy ever procured, with a wingspan of 112 feet.〔Boyne, Walt, "Test Pilot", ''Airpower'', Granada Hills, California, September 1974, Volume 4, Number 5, pp.38, 52.〕
He was forced to bail out of an experimental airframe on at least one occasion. On 30 March 1936, the sole Pitcairn YG-2 gyrocopter, (Pitcairn PA-33), ''35-270'', undergoing tests by NACA, suffered structural failure, and crashed near the Back River, Virginia, two miles SE of Langley Field, and burned. McAvoy managed to safely escape the rotor-winged craft. 〔http://www.aviationarchaeology.com/src/1940sB4/1936.htm〕
After transferring to Ames Research Center in the fall of 1940, McAvoy was involved in ice-research work. NACA and the military were very interested in advancing all-weather flight capabilities at this time. He flew a Martin XPM, a North American O-47, and later, a Lockheed 12A transport, specially modified by Kelly Johnson and Lockheed with engine exhaust ducted through the wing leading edges and exhausting at the wingtips. From early 1940, this plane was flown into the worst weather to be found, and the research provided by the heavily instrumented airframe showed that anti-icing systems were practical. 〔National Aeronautics and Space Admininstration, SP-4302, "Adventures in Research: A History of Ames Research Center 1940-1965", Chapter 1.9.〕〔http://history.nasa.gov/SP-4302/ch1.9.htm〕
"In 1943 the Institute of the Aeronautical Sciences had given Ames pilot William H. McAvoy the Octave Chanute Award for 'continuous service in the flight testing of experimental planes under hazardous conditions imposed by aeronautical research.' Certainly an important part of the motivation for this award came from the hazardous deicing flights of the Lockheed 12 on which McAvoy had served as pilot." 〔National Aeronautics and Space Admininstration, SP-4302, "Adventures in Research: A History of Ames Research Center 1940-1965", Chapter 1.9.〕〔http://history.nasa.gov/SP-4302/ch1.9.htm〕

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