Who are the lucky fellows of the U-boat service?
The 2000 U-boat sailors, who are now POWs. They are the lucky survivors.
For every two U-boat sailors who will be rescued and caught by the British navy, five will go down.
How long is the active enlistment period?
A year ago, life insurance companies in neutral countries have calculated that the average life expectancy of a German U-boat sailor on active service is 62 days. This figure has fallen since then.