One of two XB-70A Valkyries built takes off, escorted by a TB-58 chase plane. Although the supersonic bomber was a technological marvel, it arrived too late on the scene to be practical. (NASA)
One of two XB-70A Valkyries built takes off, escorted by a TB-58 chase plane. Although the supersonic bomber was a technological marvel, it arrived too late on the scene to be practical. (NASA)