The base then expanded heavily during World War II and by 1942, the Navy had added expanded fleet training schools, and an amphibious force training unit. By the following year, it was determined the scope of operations exceeded the base's basic function as a Destroyer Base. On 7 October 1943, the base was re-designated the U.S. Repair Base, San Diego, a title it retained throughout World War II. Between 1943 and 1945 the newly named base performed conversion, overhaul, maintenance and battle damage repair to more than 5,117 ships. Central to this maintenance were the Navy's construction and delivery of 155 new floating dry docks deployed to various bases, including three 3,000-ton, three 1,000-ton and one 900-ton floating docks remaining at the San Diego Repair Base. The floating dry docks became the central repair and training facilities on the base which were crucial to the World War II mission.