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The Lockheed SR-71 "Blackbird" is a retired long-range, high-altitude, Mach 3+ strategic reconnaissance aircraft developed and manufactured by the American aerospace company Lockheed Corporation. [N 1] Its nicknames include "Blackbird" and "Habu". [1] The SR-71 was developed in the 1960s as a black project by Lockheed's Skunk Works division.
Lockheed SR-71 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.
A fourth YF-12 aircraft, the "YF-12C", was actually the second SR-71A (AF Ser. No. 61–7951). This SR-71A was re-designated as a YF-12C and given the fictitious Air Force Serial Number 60-6937 from an A-12 to maintain SR-71 secrecy. The aircraft was loaned to NASA for propulsion testing after the loss of YF-12A (AF Ser. No. 60–6936) in 1971.
The Lockheed Martin SR-72, colloquially referred to as "Son of Blackbird", [1] is an American hypersonic concept intended for intelligence, surveillance and reconnaissance (ISR) proposed privately in 2013 by Lockheed Martin as a successor to the retired Lockheed SR-71 Blackbird. In 2018, company executives said an SR-72 test vehicle could fly ...
5 February 1968: Lockheed ordered to destroy A-12, YF-12 and SR-71 tooling. 8 March 1968: First SR-71A (#61-7978) arrives at Kadena AB to replace A-12s. 21 March 1968: First SR-71 (#61-7976) operational mission flown from Kadena AB over Vietnam. 8 May 1968: Jack Layton flies last operational A-12 sortie, over North Korea.
A size comparison of five of the largest aircraft: ... 142.71 tons: 44.28 tons: B-36 development, most capable transport aircraft until the An-22 Boeing B-52:
N 5] [N 6] The development of the Lockheed U-2 and the SR-71 Blackbird reconnaissance aircraft, as well as the XB-70, prompted Soviet aerospace engineers to design and develop their high-altitude and high-speed MiG-25 interceptor. [73] [74]
The suit is a direct descendant of the U.S. Air Force high-altitude pressure suits worn by the two-man crews of the SR-71 Blackbird, pilots of the U-2 and X-15, and Gemini pilot-astronauts, and the Launch Entry Suits (LES) worn by NASA astronauts starting on the STS-26 flight, the first flight after the Challenger disaster.