From US’ HACM to India’s BrahMos-II: The world’s hypersonic arms race heats up

A rendering of a hypersonic weapon in flight by RTX (formerly Raytheon).The US Air Force’s scramjet-powered Hypersonic Attack Cruise Missile (HACM) has finally reached the flight-test phase, with at least one release carried out over a test range in Australia. The programme has suffered significant delays, prompting the Air Force to scale back its overall testing plans in an attempt to keep it on schedule.