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TR-3 Black Manta
The TR-3A Black Manta is the name of a surveillance aircraft of the United States Air Force speculated to be developed under a so-called "black project." The only evidence for such an aircraft is based on speculations about several reported sightings of mysterious flying wing aircraft over Antelope Valley, an area of desert in southern California. This stretch of desert draws people interested in potential "black project"-related aircraft, because it is close to several known military research and testing areas, such as Edwards Air Force Base in California, and United States Air Force Plant 42.〔Pope 1991, p. 34〕
==Rumors==
The TR-3A is claimed to be a subsonic stealth spy plane with a flying wing design. It was alleged to have been used in the Gulf War to provide laser designation for Lockheed F-117 Nighthawk bombers, for targeting to use with laser-guided bombs. The TR-3A is supposedly manufactured by Northrop Grumman.〔Pope 1991, p. 32〕
How the TR-3 designation came up in publications is unclear. It is clearly not a continuation of the R-for-Reconnaissance series, since ER-2 (NASA designation for U-2 aircraft modified for Earth science studies) stood for "Earth Resources", not "Electronic Reconnaissance". It is, therefore possible that TR-3 is merely a corruption of Tier III, a name given to a cancelled large reconnaissance unmanned aerial vehicle (UAV) flying wing designed around the time of alleged sightings of the Black Manta, circa 1988–1990. The Tier III Minus program that resulted in the unsuccessful Lockheed Martin RQ-3 DarkStar was a scaled-down derivative of the original Tier III.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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