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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 ...
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.
The first and by far biggest gift arrived Dec. 20, when the Pentagon's daily digest of contract awards showed Lockheed winning orders for 145 F-35 fighter jets worth $11.8 billion. Reported as a ...
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Lockheed Aircraft Corporation 1963 1963 3 CL-1200 Lancer / X-27: Interceptor Lockheed Corporation Cancelled at mock-up stage Never Never 0 YF-12: Interceptor Lockheed Corporation: Mach 3+ Capable. Developed during the late 1950s and early 1960s as a potential replacement for the F-106 Delta Dart. Related to the SR-71 and A-12. 1963 Never 3 F-12C
Even after a share-price liftoff, Lockheed Martin stock still has rocket fuel in the tank. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 ...