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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 first crash involving a Bell-Boeing Osprey occurs when the fifth MV-22, BuNo 163915, three minutes into its maiden flight at a Boeing flight test facility at Wilmington, Delaware, suffers problems with the gyros due to incorrect wiring in the flight-control system [55] and crashes into the ground from a 15-foot (4.6 metre) hover during an ...
The longest continuing United States classified military airplane program is the testing and evaluation of Foreign Aircraft Technology. During the Cold War, secret test flying of Mikoyan-and-Gurevich Design Bureau (MiG) and other Soviet aircraft was an ongoing mission dating back to the acquisition of the first Soviet-built Yakovlev Yak-23 in 1953.
Before the test "Snoopy" could fly, the XF-108 program was cancelled, and the proposed Lockheed YF-12 interceptor was to instead receive the radar/missile system pair. Tests of the system were conducted first in 1960 and until 1963 only on the modified B-58, after which the YF-12 took over until the cancellation of the whole program in 1966. [1]
Capt. Dave Snowden was “relieved” of his job at the helm of the USS Harry S. Truman and temporarily reassigned following the wild Feb. 12 crash in the Mediterranean Sea, according to the ...
The YF-22 and YF-23 in formation during flight testing in the early 1990s The squadron was first activated as the 6511th Test Squadron in March 1989 to conduct the Advanced Tactical Fighter program. It began flying the Northrop YF-23 on 27 August and the Lockheed YF-22 on 29 September 1990, flying both through December 1990, though the ...
Olesya Taylor and her 12-year-old daughter Olivia were among the 67 people who died in the D.C. plane crash on Jan. 29. Friend Olga Konopelko, who spoke with Olesya shortly before the doomed ...