Northrop Grumman will provide long-lead materials for the US Navy’s tenth amphibious transport dock ship under a $184m contract.

The company will procure long-lead materials and major equipment including main engines and diesel generators, electrical switchboards, deck equipment and fire-extinguishing systems.

The San Antonio Class LPD 17 ships will provide the navy and marine corps with modern, sea-based platforms that are networked to operate with next-generation platforms including the MV-22 Osprey multimission aircraft and the marine corps expeditionary fighting vehicle.

The 684ft-long, 105ft-wide LPD 17 Class ship has a displacement of approximately 25,000t and can accommodate 800 troops.

The ship will deploy the combat and support elements of marine expeditionary units and brigades, and support amphibious assault, special operations or expeditionary warfare missions.

Work on the tenth transport dock ship will be carried out at the company’s Gulf Coast facilities.