Among others, the Pentagon is funding the Lockheed Martin Falcon Hypersonic Technology Vehicle 2 (HTV-2) program; the Raytheon Hypersonic Air-breathing Weapon Concept (HAWC) and the Raytheon/Lockheed Tactical Boost Glide (TBG) program.
HTV-2 is a multiyear research and development effort to increase the technical knowledge base and advance critical technologies to make long-duration hypersonic flight a reality. The Falcon HTV-2 is an unmanned, rocket-launched, maneuverable aircraft that glides through the Earth’s atmosphere at Mach 20.
HAWC is a joint DARPA/ Air Force effort to develop and demonstrate critical technologies that enable an effective and affordable air-launched hypersonic cruise missile. It will pursue flight demonstrations to address three critical technology challenges: air vehicle feasibility, effectiveness, and affordability.