The Mk-11 guided missile launching system (GMLS) is a twin-arm missile launcher designed for use on frigates and other military vessels.

The launcher could use the RIM-24 Tartar

RIM-24 Tartar

The General Dynamics RIM-24 Tartar was a medium-range naval surface-to-air missile , and was among the earliest surface-to-air missiles to equip United States Navy ships...

 or RIM-66 Standard

RIM-66 Standard

The RIM-66 Standard MR is a medium range surface-to-air missile originally developed for the United States Navy . The SM-1 was developed as a replacement for the RIM-2 Terrier and RIM-24 Tartar that were deployed in the 1950s on a variety of USN ships...

 missile. Used on Albany class cruiser

Albany class cruiser

The Albany Class guided missile cruisers were converted Baltimore and Oregon City class heavy cruisers of the United States Navy. All original superstructure and weapons were removed and replaced...

s and the first thirteen Charles F. Adams class destroyers. The New Threat Upgrade

New Threat Upgrade

-The Program:New Threat Upgrade was a program to improve the anti-aircraft capability of Terrier and Tartar ships. It allowed the full use of newer Standard missiles and improved the interoperability of the radar and computer systems aboard the ships...

 added the ability to launch RGM-84 Harpoon

Boeing Harpoon

The Harpoon is an all-weather, over-the-horizon, anti-ship missile system, developed and manufactured by McDonnell Douglas . In 2004, Boeing delivered the 7,000th Harpoon unit since the weapon's introduction in 1977...

anti-ship missiles.