Multimillion-dollar contracts for six auxiliary propulsion systems for the U.S. Navy's FFG-class guided missile frigates have been recently received by the Louis Allis Division of Litton Industries, Milwaukee, Wis.

Three systems are to be delivered to Bath Iron Works, Bath, Maine, two are to go to Todd Pacific in San Pedro, Calif., and one to Todd Pacific in Seattle, Wash. The auxiliary propulsion system can move the ship sideways and, though not designed as a bowthruster, can control both bow and angular movement.