Underwater Vehicles

Lockheed Martin Sippican is the world's largest producer of low-cost UUV's.  The Underwater Vehicles Division developed and produces expendable, mobile, anti-submarine warfare (ASW) training targets including the MK 39 EMATT and SUBMATT which are used by the U.S. Navy and other free world navies for ASW training.  

Other variants are under development for special missions including mine warfare and acoustic countermeasures.