Hypersonic Technology Vehicle 2 (HTV-2) is an experimental hypersonic glide vehicle developed as part of the DARPA Falcon Project designed to fly in the Mach 20 range.[1][2][3][4] It is a test bed for technologies to provide the United States with the capability to reach any target in the world within one hour (Conventional Prompt Strike) using an unmanned hypersonic bomber aircraft.[5]