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The Lockheed YF-12 is an American Mach 3+ capable, high-altitude interceptor prototype, developed and manufactured by American aerospace company Lockheed Corporation.. The interceptor was developed during the late 1950s and early 1960s as a potential replacement for the F-106 Delta Dart interceptor for the United States Air Force (USAF).
The YF-12 program was a limited production variant of the A-12. Lockheed convinced the U.S. Air Force that an aircraft based on the A-12 would provide a less costly alternative to the recently canceled North American Aviation XF-108, since much of the design and development work on the YF-12 had already been done and paid for. Thus, in 1960 the ...
SR-71C was a hybrid trainer [188] aircraft composed of the rear fuselage of the first YF-12A (S/N 60-6934) and the forward fuselage from an SR-71 static test unit. The YF-12 had been wrecked in a 1966 landing accident. It has been reported that this Blackbird was seemingly not quite straight and had a yaw at supersonic speeds. [189]
The Pratt & Whitney J58 (company designation JT11D-20) is an American jet engine that powered the Lockheed A-12, and subsequently the YF-12 and the SR-71 aircraft. It was an afterburning turbojet engine with a unique compressor bleed to the afterburner that gave increased thrust at high speeds.
First family of operational Mach 3 aircraft. Composed almost entirely of titanium. The CIA M-21 was capable of launching a Mach 3 drone, known as the D-21. The YF-12 interceptor version was capable of launching a Mach 4 version of the AIM-47 Falcon missile, capable of hitting bombers flying at extremely low altitude. Johnson's second Collier ...
From 1963 to 1968, he served as test director of the YF-12 and SR-71 test force. [7] He was the first military pilot to fly the YF-12A interceptor and the SR-71 reconnaissance aircraft. [1] Stephens and Andre after their record setting YF-12A flight in 1965
One of the three Lockheed YF-12A prototypes had Air Defense Command markings (vertical stabilizer nearest center) during 1963 Edwards testing by AFSC's 4786th TS. Using the AN/ASG-18 from the F-108 Rapier program and Falcon missile developed for the F-108A, the Mach 3 interceptor was funded by Congress with $90 million for a 14 May 1965 USAF ...
Two new world records for flight speed were set by a Lockheed YF-12A jet interceptor on the same day by two different crews. On one flight, the crew broke the 2,000 mph barrier, flying at 2,070.102 miles per hour (Mach 3.27) [1] and shattering the previous speed record of 1,665.8 miles per hour that had been set on July 7, 1962, by a Soviet Ye-166.