The Mach 3+ D-21 drone concept (15 HQ Photos)

  • whyme1973

    Looks like a scaled down SR-71 engine with wings…interesting.

  • none to give

    Now that my friends is some expensive paranoia.

  • Lyster

    They've got one at the USAF Museum at Wright Patt… And to think how long ago those were made… and what could exist now.

  • Chris

    Tellin ya, if the SR-71 had never been and was rolled out for the first time today, you'd call BS and think it was stolen alien technology. That design was genius and beautiful to boot.

  • Kodos

    And all designed with slide rules…. awesome.

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