Lockheed Martin will provide the U.S. Navy and allied navy customers from Canada and The Netherlands with upgrade kits and services for the MK 48 heavyweight torpedo under a new, $37 million contract award, part of a five-year effort to upgrade the entire submarine fleet.

The Mod 7 Common Broadband Advanced Sonar System (CBASS) upgrade kit equips the heavyweight MK 48 with increased bandwidth and streamlined targeting and tracking capabilities.

The kit includes a broadband analog sonar receiver, a guidance and control box, and a pre-amplifier. Since the CBASS program was first awarded to Lockheed Martin in 2011, the U.S. Navy has awarded more than $70 million for functional item replacement kits, engineering services, spares, and production support material.

“The CBASS upgrades dramatically enhance the performance and capabilities of the MK 48. The refinements we’ve made to the torpedo’s guidance and control systems provide the U.S. Navy with a highly capable weapon in both littoral and deep sea environments,” said Tom Jarbeau, Lockheed Martin Program Director.

The replacement kits will upgrade the heavyweight torpedoes used by the entire United States submarine fleet for anti-submarine or anti-surface warfare. The MK 48 heavyweight torpedo is also employed by the allied navies of Australia, Canada, and The Netherlands.

Lockheed Martin’s Marion, Mass., facility will perform the CBASS work, with additional support from other company locations, including Manassas, Virginia; Syracuse, New York; and Newport, Rhode Island.

Lockheed Martin subsidiary Polaris Contract Manufacturing will build the circuit card and module assembly.