Fleet availability depends on the facilities needed to maintain ships and submarines. Neglected dry docks eventually require work themselves and become unavailable for maintaining vessels. Delays in restoring the docks then create a backlog of ships waiting for attention. Even a fleet with many hulls can consequently have few ready for operations.
Notable Point · 3:47-4:20
How neglected dry docks reduce fleet availability
Delayed investment in dry docks can create maintenance backlogs that leave ships and submarines unavailable.