Lockheed Martin and Marinette Marine Corp. Testing of the Rolls Royce MT-30 gas turbine engine is a significant step as the ship prepares for sea trials this summer. Freedom, the first of a new class of littoral combat ships, will use these two gas turbine engines and two main propulsion diesel engines to power the ship's steerable water jets, a first for a U.S. Navy ship, and propel the ship at speeds of more than 40 knots. "This was an important milestone," said LCS Program Manager Capt. Jim Murdoch. Freedom will continue to perform dock-side tests and evaluations as it prepares for its summer sea trials. The Navy expects to accept delivery of the ship and commission it later this year. LCS is a new breed of U.S.