U.S. Navy Advances New Deck Missile Launcher to Expand Firepower on Carriers and Amphibious Ships.

The U.S. Navy is moving closer to expanding the missile capacity of its surface fleet following the successful live-fire test of a new deck-mounted launching system developed by BAE Systems. The demonstration marks a further step toward equipping American and allied warships with additional air defense weapons while reducing their dependence on port facilities for missile replenishment.

Rendering of the BAE Systems Adaptable Deck Launcher firing a missile, illustrating a deck-mounted system designed to increase air defense firepower aboard U.S. Navy aircraft carriers, amphibious ships and other surface combatants. (Picture source: BAE Systems)

The Adaptable Deck Launcher (ADL) is a modular system designed to supplement existing naval vertical launching installations. Developed under a contract for the NATO Seasparrow Project Office (NSPO), the launcher offers an alternative for vessels that cannot accommodate conventional below-deck missile cells, including amphibious ships, aircraft carriers, and potentially unmanned surface platforms.

On October 27, 2026, BAE Systems announced the successful first live-fire test of the Adaptable Deck Launcher, confirming progress in a program intended to distribute missile firepower across a wider range of naval vessels. Although the company has not disclosed the exact date of the firing, the missile variant employed, or the number of rounds launched, the demonstration represents another step toward integrating additional launch capabilities into existing and future fleets.

A Modular Launcher Designed to Expand Naval Missile Capacity

Unlike conventional vertical launching systems, which require dedicated spaces extending beneath a warship's deck, the ADL uses a fixed-angle arrangement installed above the ship's existing structure. Its modular architecture allows launch cells to be grouped according to available deck space and operational requirements. This approach could enable additional missile installations without the extensive structural modifications associated with integrating a conventional Vertical Launching System (VLS).

The launcher draws on the existing Mk 41 VLS logistics and electronics architecture, allowing operators to benefit from established missile-handling procedures and launch-control equipment. By retaining compatibility with equipment already used across numerous American and allied warships, the system could also reduce integration costs and simplify maintenance. Its deck-mounted configuration provides greater flexibility for ships originally designed without large missile magazines.

A central technical feature is compatibility with the Mk 25 Quad-Pack canister used by the RIM-162 Evolved SeaSparrow Missile (ESSM). Each canister accommodates four interceptors, providing a compact defensive weapon arrangement against hostile aircraft, anti-ship missiles, and other airborne threats. The ESSM Block 2 variant incorporates active and semi-active radar guidance, reducing dependence on continuous shipboard target illumination during the terminal engagement phase.

The ADL architecture is also intended to support different configurations depending on the operational requirements of the host vessel. However, compatibility with additional missile types should not be confused with completed operational qualification. Further integration and testing would be required before the system could support a broader range of naval weapons.

At-Sea Missile Reloading Could Change Naval Combat Endurance

One of the system's principal operational advantages concerns missile replenishment. Conventional VLS installations generally require specialized handling arrangements and favorable conditions for reloading, making port facilities an important element of sustained naval operations. The ADL is designed to simplify this process through accessible deck-mounted canisters and standard shipboard equipment, potentially allowing warships to restore part of their missile inventory while remaining at sea.

This capability addresses a growing operational concern for navies facing increasingly dense missile and drone attacks. During prolonged engagements, defensive interceptors can be consumed faster than warships can replenish them. Additional launch cells provide greater initial capacity, while improved reloading procedures could reduce the time a vessel operates with depleted magazines.

For the U.S. Navy, the ADL could also change how missile defenses are distributed across a naval task force. Aircraft carriers and amphibious assault ships could carry additional interceptors, easing some of the pressure on escort vessels responsible for protecting the formation against incoming missiles and aircraft. Its potential integration aboard unmanned surface vessels offers another possibility, allowing smaller platforms to contribute to fleet air defense without requiring the infrastructure of a conventional vertical launching system. However, the practical value of these configurations will depend on their integration with existing combat management systems and shipborne sensors.

Naval Rearmament Reflects Growing Pressure on Allied Fleets

The development comes as Western navies reassess their missile inventories and ability to sustain operations during prolonged maritime confrontations. In the Indo-Pacific, the growing reach of Chinese anti-ship missile systems raises questions about whether existing U.S. and allied fleets carry sufficient defensive weapons to withstand repeated attacks. The interception of Houthi missiles and drones in the Red Sea has already demonstrated how quickly shipborne interceptors can be consumed, even against relatively inexpensive threats. More recently, during the 2026 conflict with Iran, U.S. Navy destroyers operating in the Eastern Mediterranean employed SM-3 interceptors against Iranian ballistic missiles threatening Turkish airspace, further illustrating the demand placed on naval air and missile defense inventories. Against this backdrop, the ADL offers the prospect of increasing missile capacity aboard existing warships while reducing the logistical constraints associated with replenishment.

Written By Erwan Halna du Fretay - Defense Analyst, Army Recognition Group
Erwan Halna du Fretay holds a Master’s degree in International Relations and has experience studying conflicts and global arms transfers. His research interests include security and strategic studies, particularly the dynamics of the defense industry, the evolution of military technologies, and the strategic transformation of armed forces.