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    Wikipedia
    https://en.wikipedia.org/wiki/Lockheed_YF-12
    Lockheed YF-12 - Wikipedia
    TypeInterceptor aircraft
    ManufacturerLockheed Corporation
    StatusCanceled
    Primary usersUnited States Air Force · NASA
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    Lockheed YF-12 | Blackbird with missiles
    17:32
    Lockheed YF-12 | Blackbird with missiles
    YouTubeSkyships Eng107.5K viewsJul 29, 2021
    Overview

    The Lockheed YF-12 is an American Mach 3+ capable, high-altitude interceptor prototype, developed and manufactured by American aerospace company Lockheed Corporation.
    The interce… See more

    Design and development

    In the late 1950s, the United States Air Force (USAF) sought a replacement for its F-106 Delta Dart interceptor. As part of the Long Range Interceptor Experimental (LRI-X) program, the North American XF-108 Rapier, … See more

    Operational history

    During flight tests the YF-12As set a speed record of 2,070.101 miles per hour (3,331.505 km/h) and altitude record of 80,257.86 feet (24,462.60 m), both on 1 May 1965, and demonstrated promising results wit… See more

    Variants

    YF-12A Pre-production version. Three were built. F-12B Production version of the YF-12A with various improvements such as an increased combat radius from 1,200 to 1,350 nautical miles and an improved fire control syst… See more

    Wikipedia text under CC-BY-SA license
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