Search results
Results from the WOW.Com Content Network
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 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.
Strategic overflight reconnaissance in peacetime became routine U.S. policy. The CIA's Project OXCART, an aircraft which flew even higher and four times faster than the U-2, advanced aerial overflight reconnaissance capabilities with eventual development of the Lockheed SR-71 Blackbird.
The A-12 entered service with the CIA in the 1960s, and was slightly modified to become the Air Force's SR-71. ... The U-2 and OXCART Programs, 1954 - 1974.
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.
D-21 on display at the Blackbird Airpark, Air Force Plant 42, Palmdale, California A close-up rear view of D-21 on M-21 at the Museum of Flight in Seattle SR-71 and D-21 at the Pima Air & Space Museum, Tucson, Arizona D-21 wreck in the Chinese Aviation Museum. D-21B #510 – Museum of Flight, Seattle, Washington (mounted on remaining M-21 #60 ...
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.
Decelerating from M3 required a reduction of thrust which could unstart an intake with the reduced engine airflow. The SR-71 descent procedure used bypass flows to give unstart margin as the engine flow was reduced. Thrust reduction on the XB-70 was achieved by keeping the engine flow stable at 100% rpm even with idle selected with the throttle.