d-21 drone

  1. SR-71 and D-21 Drone

    SR-71 and D-21 Drone

    Due to the agreement between the Soviet Union and the United States restricting the use of manned vehicles over the Soviet landmass, this unmanned aircraft was developed. The drone was carried and launched by two A-12-like aircrafts called M-21s(moded SR-71's), and a number of B-52Hs. The...
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