[HMCS]

When new subs were commissioned, the officer receiving command would head stateside to where she was actually built and would actually be involved in her construction and commissioning. Usually this was an officer who was selected for command of a new boat, and had spent at least one war patrol on an active boat. They were known as PCOs, or "Prospective Commanding Officers" as part of the "PCO Pool".

Personally, I think that time should be advanced a minimum of 4 months every time the player gets a new boat to reflect the time that it would take to oversee final construction, have a commissioning party and sail the boat from the US eastern seaboard to PH.