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    The Lockheed YF-12: The Supersonic Guardian of the Skies and Ancestor of the Iconic SR-71

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    YF-12 & D-21” by MrGuilt is licensed under CC BY 2.0

    The Lockheed YF-12, a product of the innovative and secret-laden 1960s, emerged as a high-altitude, Mach 3 interceptor, engineered as an airborne guardian against the threat of supersonic bombers. This formidable aircraft, which first took flight in August 1963, not only showcased the pinnacle of aviation technology of its time but also set the stage for its more famous successor, the SR-71 Blackbird.

    1963 … YF-12 Interceptor” by x-ray delta one is licensed under CC BY-NC-SA 2.0

    Developed from the clandestine A-12 reconnaissance platform by Lockheed’s Skunk Works under the watchful eye of Clarence “Kelly” Johnson, the YF-12A represented an evolution in strategic air defense. The YF-12A was distinct in its modification to accommodate the Hughes AN/ASG-18 fire-control radar and the addition of a second cockpit for a fire control officer to manage its advanced missile system. With its sleek, black silhouette, the YF-12A could unleash three Hughes AIM-47A missiles.

    YF-12 Blackbird” by NASA APPEL Knowledge Services is licensed under CC BY-NC 2.0

    The first of three YF-12s flew in August 1963. In May 1965, the first and third YF-12s set several records, including a speed record of 2,070.101 mph and an altitude record of 80,257.65 feet. For their speed record flight, Col. Robert L. “Fox” Stephens (pilot) and Lt. Col. Daniel Andre (fire control officer) received the 1965 Thompson Trophy.

    Lockheed YF-12 (6693359767) (2)” by Clemens Vasters from Viersen, Germany is licensed under CC BY 2.0

    The last one was launched from the YF-12 at Mach 3.2 at an altitude of 74,000 ft (22,677 m) to a JQB-47E target drone 500 ft (152 m) off the ground. One of the Air Force test pilots, Jim Irwin, would go on to become a NASA astronaut and walk on the Moon.

    SR-71 Blackbird at Strategic Air and Space Museum, Omaha” by Asten is licensed under CC BY-NC-ND 2.0

    YF-12A #60-06935 is the only surviving YF-12A; it was recalled from storage in 1969 for a joint USAF/NASA investigation of supersonic cruise technology, and then flown to the National Museum of the United States Air Force at Wright-Patterson Air Force Base near Dayton, Ohio on 17 November 1979.

    related images you might be interested.

    Lockheed A-12 ‘06933’ (60-6933)” by HawkeyeUK is licensed under CC BY-SA 2.0
    Lockheed A-12” by Photos By Clark is licensed under CC BY-NC 2.0
    YF-12s” by aeroman3 is licensed under CC PDM 1.0
    Lockheed YF-12A” by rocbolt is licensed under CC BY-NC 2.0
    Lockheed A-12 04” by Ad Meskens is licensed under CC BY-SA 3.0
    Lockheed SR-71A ‘Blackbird’” by mark6mauno is licensed under CC BY 2.0
    Lockheed SR-71 Black” by skyandsea876 is licensed under CC BY 2.0
    SR-71 Blackbird” by Armchair Aviator is licensed under CC BY 2.0
    Lockheed SR-71 Blackbird” by Armchair Aviator is licensed under CC BY 2.0
    Lockheed YF-12 Blackbird” by Clemens Vasters is licensed under CC BY 2.0

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