On the day of a U-boat setting sail what actually goes on prior to leaving for their mission?
I am sure it takes more than a morning to make sure the U-boat is sea-worthy, including loading the weapon stores, cramming as much food and water wherever there is space available, etc. But what specifically (even if it is a check list) does the crew do the day of departure? Do the officers meet over breakfast with the Flotilla commander, does the crew have a 'locker room' speech, or is it all pretty lax and as long as the crew was ready to depart none of it really mattered?
English answers preferable.