BATH (AP) – General Dynamics’ Bath Iron Works remains in negotiations with the Navy to build another warship designed to operate in shallow waters close to shore.

The Navy this week awarded a contract for the third littoral combat ship to Lockheed Martin. The USS Fort Worth will be built at the Marinette Marine shipyard in Wisconsin. Terms were not released, but Congress has imposed a price cap of $460 million per ship.

Maine’s Bath Iron Works, meanwhile, is overseeing construction of a competing design at Austal USA in Alabama. It’s negotiating a contract with the Navy for its next ship.

Lockheed’s ship is a traditional monohull while BIW’s is an aluminum trimaran. In the next fiscal year, the Navy is seeking funding for three more of the ships.