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- Republic XF-84H Thunderscreech
The XF-84H was derived from the RF-84F as a supersonic propeller test vehicle driven by an afterburning Allison XT-40 turboprop engine. Two aircraft were built and briefly tested as noise produced by the propeller even at idle was too severe for safe ground crew activities. The sickening noise gave the aircraft its nickname "Thunderscreech."
It was the first US aircraft built with a Ram Air Turbine (RAT) which provided emergency electrical and hydraulic power in subsequent US aircraft, but provided needed power for the XF-84H when landing. Another novel feature was a "take-off fin" or "vortex gate" aft of the cockpit to overcome the effects of the propeller torque.
The flight program lasted from June 1955 until October 1956 with the program being taken over by the McDonnell XF-88B which flew until January 1958. The XF-88B had both turbojet and turboprop engines and could taxi and take off without the turboprop operating, thus without subjecting the ground crew to the painful noise.
Pages: 40
Size: 8.5 X 11 (inches)
Format: Paperback
Illustrations: 77 b/w, 4 color, 21 drawings
Publisher: Steve Ginter
ISBN: 9780996825818
Product Code: GB581
Reviews
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Internet Modeler
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(Posted on 10/24/2015)"For those interested in interesting US Air Force testbed aircraft, this is a great book to have. Not only does it fill a gap in the story on the F-84, it also helps tell the story of the evolution of aircraft propulsion in the 1950s."
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Cybermodeler Online
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(Posted on 11/19/2015)"Utterly enjoyable, informative."
Steve Ginter
Upon graduation from college, Steve Ginter was commissioned an officer in the U.S. Navy and became a pilot. After leaving the Navy he entered into corporate human resources at the management level. Steve Ginter founded Ginter Books, Naval Fighters Series in 1980 while working in district and regional management positions for Thrifty Drugs. In the 1990s the Air Force Legends Series was launched. Between the two series, over 112 books have been published thus far promoting the colorful history of military aircraft in America.
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