DRILL SHIP

摘要

PURPOSE: A drill ship is provided to operate a moonpool door using a small amount of driving force because unit doors located at the center of the moonpool door are narrower than unit doors located at both sides thereof. CONSTITUTION: A drill ship comprises a hull(10), a moonpool door(30), and a door operation unit(50). A moonpool(14) is formed in the hull. The moonpool door is hinged on inner walls which limit the moonpool. The moonpool door comprises multiple unit doors(31). The unit doors located at the center part of the moonpool door are narrower than the unit doors located at both sides thereof. The door operation unit rotates the unit doors.