Is the saw-like device on the front of a U-boat intended for

If a U-boat is scuttled, does the crew die? If not, how do they

How did U-boats avoid to sink friendly ships? How did they make

Did U-boat officers eat as well as the Captain and the officers

How did U-boats avoid to sink friendly ships? How did they make

Did U-boats strafe lifeboats? - Quora

Did German U-boats taunt Allied ships? - Quora

If a U-boat is scuttled, does the crew die? If not, how do they

Did any U-boat shoot down a plane? - Quora

How did destroyers sink U-boats? - Quora

How did destroyers find U-boats? - Quora