Both of these technologies were used in the X-51A WaveRider, a vehicle developed by DARPA, the US Air Force and space agency NASA that made the longest-ever hypersonic flight for a vehicle of its kind in May 2013.
Aerojet Rocketdyne also did propulsion system test firings for a future ground-launched hypersonic missile, under DARPA’s Operational Fires program.
Developing technologies able of intepcting incoming missiles or other fast-moving vehicles out of the sky is a priority for armies around the world.