US Air Force HACM hypersonic cruise missile enters flight testing in Australia

The US Air Force and Australia have released a test unit of the Hypersonic Attack Cruise Missile (HACM) over an Australian range under the SCIFiRE program. The missile is designed for speeds above Mach 5, the test date and location were not disclosed, and the flight campaign has been cut from seven to five tests.

• HACM is a two-stage weapon: a rocket booster and a scramjet cruiser
• Designed for speeds above Mach 5, top speed undisclosed
• Flight test campaign reduced from seven to five
• US Air Force targets a procurement decision in fiscal 2027