Derecktor Shipyards could be building high-speed ferries for the U.S. military in Bridgeport if it and its partners can edge out some tough competition for what could be a $234m defense contract. Exactly how many consortiums have bid on the Joint High Speed Vessel for the Army and Navy is unclear. Only two groups have verified they are going after the contract to develop a completely new vessel for the Navy. Derecktor and its partners, Maersk Line Ltd., which is the U.S. subsidiary of Dutch A.P. Moller Maersk Group, and naval architects Gibbs & Cox confirmed they're in the contest this month. Louisiana-based Bollinger Shipyards Inc.