US Navy conducts another test of sea-based hypersonic missile

The US Defense Department has conducted a successful flight test of a conventional hypersonic missile launched from the Cape Canaveral Space Force Station, Florida.  

The US Navy has carried out its first test launch of the conventional prompt strike (CPS) missile using a cold-gas ejection system designed for sea-based platforms. The launch marks a key milestone in the development of a new hypersonic missile capability being developed jointly with the US Army.

The missile was launched as part of a flight test of the common all-up round (AUR), a hypersonic weapon that will eventually be deployed by both military branches.

The cold-gas system, used in this test, allows the missile to be ejected vertically from the ship to a safe distance before the rocket motor ignites, according to the navy.

Vice Adm. Johnny R. Wolfe Jr., director of the Navy’s Strategic Systems Programs, said the cold-gas launch method helps ensure safety and reliability when launching from naval platforms.

The CPS program has been preparing for the missile’s first operational deployment aboard the USS Zumwalt, a guided missile destroyer. Prior to this test, the launch system was evaluated at an air-based test facility to confirm its performance. Data from the test will support continued development and guide production decisions.

In 2024, two earlier full-flight tests of the missile were completed, as part of the effort to field a common hypersonic weapon across the navy and army.

In December last year, the US Army and the US Navy also completed a successful end-to-end flight test of a conventional hypersonic missile from Cape Canaveral Space Force Station in Florida. It was the first live-fire event for the long-range hypersonic weapon system using a battery operations center and a transporter erector launcher.

Officials say the CPS system is being developed to strengthen the US military’s ability to respond quickly to emerging threats, offering improved speed, range, and precision over existing conventional systems.

“The speed, range and survivability of hypersonic weapons are key to integrated deterrence for America,” said Navy Secretary John Phelan.

“When fielded, Conventional Prompt Strike will deliver unmatched capabilities to our warfighters.” 

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