Why the US Air Force chose hypersonic ARRW over HCSW

The US Air Force’s (USAF) decision to cancel the Hypersonic Conventional Strike Weapon (HCSW) and proceed with Air-Launched Rapid Response Weapon (ARRW) came down to size and shape of the missile, in addition to budgetary pressures and a desire to move toward production faster. The HCSW programme was cancelled several weeks ago. The ARRW programme passed its critical design review on 27 February.

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