The U.S. Navy’s strangest destroyer is no longer built around guns at all. The Zumwalt class entered service as a stealthy surface combatant centered on two 155mm Advanced Gun Systems, then spent years burdened by a mission that never fully materialized. Now the lead ship, USS Zumwalt, has been physically reworked into something far more specialized: a low-observable strike platform built to carry 12 Conventional Prompt Strike missiles inside four oversized launch tubes. The redesign is not cosmetic. It cuts into the exact architecture that once defined the class and replaces it with a weapon concept meant to hit defended targets from over 1,700 miles away. That shift says as much about naval engineering as it does about strategy.
Zumwalt’s original guns became a dead end when their intended ammunition proved impractical at scale, leaving the Navy with three unusually large destroyers that had abundant electrical power, distinctive stealth shaping, and no clean role that justified all three together. The hypersonic conversion finally gives the hull a mission matched to its design traits. Each ship keeps its 80 peripheral launch cells for standard missiles, but the new bow installation adds a separate class of weapon too large for ordinary destroyer launchers. That matters because CPS is not just another missile round. It is a boost-glide system that accelerates beyond Mach 5 before releasing a maneuvering glide body, forcing major changes in handling, safety, fire control, and ship integration. In practical terms, the Zumwalt class is becoming the Navy’s bridge between current surface combatants and a future fleet that wants larger, faster conventional strike options.
The lead ship has already moved through the most visible phase of that transition. After a long yard period at Ingalls, Zumwalt returned to the water and later completed builder’s sea trials following the installation work. Capt. Clint Lawler, the DDG-1000 program manager, summarized how deeply the refit altered the ship: “We removed both guns from the ship. We’ve recovered some of the space under the second gun system for spaces that were previously used under the forward gun mount. We’ve essentially recaptured some of that space. Other space is a reservation for future capability.”
That recovered volume is one of the most important parts of the story. The Zumwalt class was always an unusually power-rich design, with reporting on the class pointing to roughly 78 megawatts of electricity available from its integrated power system. Combined with the ship’s reduced signatures, that gives the Navy a hull that can absorb demanding new systems more readily than a conventional destroyer. The hypersonic installation also doubles as a proving ground because the launch arrangement is closely aligned with modules planned for future Block V Virginia-class submarines, making the surface ship a risk-reduction platform as much as a combat asset.
The rest of the class is following behind. USS Lyndon B. Johnson is already in work for combat-system activation and tube installation, while USS Michael Monsoor is scheduled for the same conversion later. According to reporting tied to Navy planning, the class is being pushed toward Fiscal Year 2028 readiness, though ship-launched weapon testing still remains a major threshold. What emerges is not a corrected version of the original Zumwalt idea, but a different ship entirely: a stealth destroyer that traded failed gunfire support for a compact magazine of very long-range strike weapons, and in doing so finally found a mission that fits its size, power, and unusual design.
