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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 ...
YF-17 Cobra: Prototype fighter aircraft Northrop: The YF-17 was the culmination of several Northrop designs, beginning with the N-102 Fang; continuing through the F-5 family. 1974 Never 2 F-15E Strike Eagle: Multirole strike fighter: McDonnell Douglas(1985–1997) Boeing Defense, Space & Security(1997–present) Evolution of the F-15 Eagle 1986 ...
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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. Stephens flew nearly all jet fighter aircraft of the 1940s and 1950s era from the F-80 Shooting Star to the F-106 Delta Dart. [2]
The AQM-60 Kingfisher, originally designated XQ-5, was a target drone version of the USAF's X-7 ramjet test aircraft built by the Lockheed Corporation.The aircraft was designed by Kelly Johnson, who later created the Lockheed A-12 and its relatives, such as the Lockheed SR-71 Blackbird and Lockheed YF-12.
The X-44 was designed by Lockheed Martin to demonstrate the feasibility of an aircraft controlled by vectored thrust alone. The X-44 design had a reduced radar signature (due to lack of tail and vertical stabilizers) and was made more efficient by eliminating the tail and rudder surfaces, and instead using thrust vectors to provide yaw, pitch ...