All three ships of the Zumwalt class are undergoing significant upgrades, including the replacement of standard 155mm deck guns with hypersonic missile tubes.
Key Points and Summary: The U.S. Navy plans to salvage the troubled Zumwalt-class destroyers by basing them in Hawaii and arming them with Conventional Prompt Strike (CPS) hypersonic missiles by 2030.
The USS Zumwalt (DDG-1000) completed its sea trials following its extensive modernization, which included the replacement of its 155mm Advanced Gun System ...