On Monday, defense giants Lockheed-Martin and Raytheon were both awarded contracts totaling $116 million between them by the U.S. Navy to separately develop prototype ship-sinking hypersonic missiles designed to sink ships hundreds of miles away for a program known as HALO (Hypersonic Air-launched Offensive). The competing initial design proposals are due in late 2024.

This likely-to-be scramjet-powered weapon, also known as Objective Anti-Surface Warfare Increment 2 (OASuW) in Navy budget documents, would be carried by the service’s carrier-based FA-18E/F Super Hornet and F-35 Lightning jet fighters and perhaps future successors. It’s expected to fly farther and much faster than the current LRASM stealth cruise missile.

The focus on anti-ship capabilities reflects the focus on a potential conflict with China in the western Pacific Ocean. Notably, simulations of a battle over Taiwan suggest it would be decided in large part by the effectiveness of long-range anti-ship missiles.
The Navy’s Need for Speedy Missiles

Strictly speaking, a hypersonic missile could describe any weapon that exceeds five times the speed of sound—i.e. traversing a mile per second—but practically, the term applies to two modern concepts. The first is a missile that releases hypersonic gliders that skip just on top of the Earth’s atmosphere.  READ MORE...