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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 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 ...
Lockheed YF-12, a prototype interceptor aircraft. This page was last edited on 10 ...
This category lists fighter aircraft considered to belong to the third generation of fighter jets, developed from the mid-1960s to the early 1970s. Pages in category "Third-generation jet fighters" The following 17 pages are in this category, out of 17 total.
Aircraft. Fokker F.XII, a Dutch airliner; Larson F-12 Baby, an American sport biplane; Lockheed YF-12, an American prototype interceptor aircraft; Republic XF-12 Rainbow, an American prototype reconnaissance aircraft; Automobiles (cars and trucks) Alpina B6 (F12), a German grand tourer; BMW 6 Series (F12), a German grand tourer; DKW F12, a ...
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The Teen Series is a popular name [1] [2] for a group of American combat aircraft. The name stems from a series of American supersonic jet fighters built for the United States Air Force and the United States Navy during the late 20th century.