I have only ever had 1 career get past '43 and it made going on patrol an utter nightmare

planes were everywhere and the only ships to be sunk were the few single merchants that could be found,convoys were a total no go

Tonnage dropped off totally and just making it back to base was an acheivment in its self,usually with damage that could not be repaired at sea.The only saving grace out of all of it was that later you can get the TypeVIIC/41 which enabled you to dive deeper should the need arise,but what little comfort that brought was far outweighed by the number of Hunter/killer groups patrolling the sea's around the UK,by '43 they are so numerous and skilled that once they get a sniff of you......you are going to be down for along time,realtime.

If you get away all you will think about is getting home back to base,but its a big IF,because more often then not you will not stand a chance,no wonder the moral amongst the U-boat crews simply ebbed away.Its hell

Thank you RoaldLarsen for you detailed breakdown and stats,its good to know that what I've always thought is true,as the war draws to a close,get in a TypeVII!