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In this photo taken from a KC-135 refueling tanker, a B-52 carries a D-21 reconnaisance drone and its rocket booster on an external pylon. (U.S. Air Force)
In this photo taken from a KC-135 refueling tanker, a B-52 carries a D-21 reconnaisance drone and its rocket booster on an external pylon. (U.S. Air Force)