The North American XB-70 Valkyrie is rolled out at Palmdale, Calif. Designed to fly at three times the speed of sound and at altitudes above 70,000 feet, the XB-70 is originally planned as a manned bomber, but funding limitations allow for only two aircraft, to be used strictly for testing and research.
Shield AI has finished building its first full-scale prototype X-BAT, a vertical takeoff-and-landing autonomous drone, and is now moving it into a new development and testing phase.