New UMM Contract

WASHINGTON, 7 April 2014. U.S. Navy undersea warfare experts needed non-penetrating sensor masts for the fleet of Virginia-class fast-attack submarines. They found their solution from L-3 KEO (formerly Kollmorgen Electro-Optical) in Northampton, Mass.

Officials of the Naval Sea Systems Command in Washington on Friday announced a $15 million contract to L-3 KEO to provide 16 Universal Modular Mast (UMM) systems for the Navy’s Virginia-class submarine fleet.

The Virginia-class is one of the first submarines without a traditional optical periscope that penetrates the vessel’s pressure hull and extends upward to enable commanders of submerged submarines to view the scene on the surface. L-3 Communications (NYSE:LLL) acquired Kollmorgen Electro-Optical (KEO) in early 2012.

The UMM, built by L-3 KEO and the company’s Italian subsidiary Calzoni SrL in Bologna, Italy, is a non-hull penetrating mast for Navy Virginia-class fast-attack submarines and Ohio-class guided missile submarines.

On the contract announced Friday, L-3 KEO and L-3 Calzoni will do the work in Bologna, Italy, and Northampton, Mass., and should be finished by May 2016.

For more information contact L-3 KEO online at, L-3 Calzoni at, or Naval Sea Systems Command at