"What do we want to do with this technology? We want to weaponize it." The US Air Force told Military.com it's planning to build on the X-51A WaveRider's "scramjet" (supersonic ramjet) trials to develop hypersonic weapons that compress air by sheer velocity. During tests in 2013, the WaveRider set a record by flying at Mach 5.1 (3,400mph) for over three minutes after it was dropped from a B-2H bomber and accelerated by a rocket. While those trials were just a proof-of-concept, the Air Force has teamed up with DARPA take the technology to the next level.