German submarine U-3503 was a Type XXI U-boat (one of the "Elektroboote") of Nazi Germany's Kriegsmarine, built for service in World War II. She was ordered...

parallel, and Nollau decided to form a convoy with two Type XXI U-boats, U-3523 and U-3503, and continue sailing north on the surface of the Kattegat sea...

German submarine Wilhelm Bauer (originally designated U-2540) is a Type XXI U-boat of Nazi Germany's navy (Kriegsmarine), completed shortly before the...

snort. A concept devised by Dutch engineers, it was widely used on German U-boats during the last year of World War II and known to them as a schnorchel...

XXI submarines. Fifteen hundred boats of this design were intended (U-2501 to U-4000), the first five hundred ordered from Deutsche Werft at Hamburg...

German submarine U-17 was a Type IIB U-boat of Nazi Germany's Kriegsmarine. It was built in Germaniawerft, Kiel, where it was laid down on 1 July 1935...

mount was used on a number of U-boats (U-190, U-249, U-250, U-278, U-337, U-475, U-1058, U-1109, U-1023, U-1105, U-1165 and U-1306). A single 3.7 cm Flak...

German submarine U-552 was a Type VIIC U-boat built for Nazi Germany's Kriegsmarine for service during World War II. She was laid down on 1 December 1939...

Göteborg, Sweden on May 8, 1945. Raised in 1946 and broken up. U-boat.net webpage for U-3503 Type: XXI Construction Laid Down: June 30, 1944 Launched: August...

ten U-boats sailed from their base in Heligoland to attack Royal Navy warships in the North Sea in the first submarine war patrol in history. The U-boats'...