Hypersonic Air-breathing Weapon Concept

The Hypersonic Air-breathing Weapon Concept (HAWC, pronounced "hawk") is a scramjet powered hypersonic air-launched cruise missile project at the U.S. Defense Advanced Research Projects Agency (DARPA), that had a successful hypersonic flight announced in September 2021. It is a kinetic energy weapon, without an explosive warhead.

Source: Wikipedia — Hypersonic Air-breathing Weapon Concept (CC BY-SA 4.0)