Midget U-Boats: Germany's Tiny Submarines
13:41
Secret U-Boats: Germany's Illegal Interwar Submarine Programme
13:34
The Last U-Boat Attack 1982
15:51
The Hidden WW2 Super Submarines
18:19
Why Germany Lost the Battle of the Atlantic (WW2 Documentary)
17:06
Naval Legends: Submarine SEEHUND | World of Warships
20:21
Germany's Super Sub, the Type XXI U-Boat | Sails and Salvos
7:36
AMAZING RC SUBMARINE TORPEDO FIRING/LAUNCH DEMONSTRATION
7:36