The Yushan-class landing platform dock (Chinese: 玉山級兩棲船塢運輸艦) is a class of landing platform dock built by CSBC Corporation, Taiwan for the Republic of China Navy (ROCN). Four ships are planned, with one ship launched in April 2021.Yushan-class ships have a length of 153 m (502 ft), a beam of 23 m (75 ft), and their standard displacement is 10,000 t (9,800 long tons).[1] The class has a draught of 6.1 m (20 ft), maximum speed of 22.1 knots (40.9 km/h) and range of 7,000 mi (11,000 km).The ships are able to carry several AAV7 amphibious APCs along with 673 troops. The ships also has a single flight deck with two hangars able to accommodate Sikorsky UH-60 Black Hawk or the naval Sikorsky SH-60 Seahawk helicopters.The class is unusually well armed for a landing platform dock with a 76 mm gun, two Phalanx CIWS, and two modular missile launchers of either 8 Hsiung Feng II surface-to-surface missiles or 32 Hai Chien surface-to-air missiles. They also have radar signature reducing features and electromagnetic pulse protection.The lead ship of the class cost $4.635 billion NTD (US$163 million).The class is intended to fill both military and humanitarian roles, as a command ship for amphibious operations, a mothership for the ROCN's small landing boats, and a general logistics transport capable of supplying islands without harbor facilities.