U-boat Deck guns - Technical pages - German U-boats of WWII

The U-boat War in World War Two (Kriegsmarine, 1939-1945) and World War One (Kaiserliche Marine, 1914-1918) and the Allied efforts to counter the threat. Over 40.000 pages on the officers, the boats, technology and the Allied efforts to counter the U-boat threat.

How German U-Boats Were Used in WWI—And Perfected in WWII

U.S. Ship Sunk in World War II by German Sub Is Found Off Maine Coast - The New York Times

Why were the guns on submarines still usable after being underwater? Wouldn't the guns rust or jam being exposed to sea water? - Quora

המערכה באוקיינוס האטלנטי (1939–1945) - מרכיבי הקרב – ויקיפדיה

Deck gun - Wikipedia

How did WWII submarines keep the deck gun from rusting shut? - Quora

The Modelling News: Preview: Two new crews for your 1/35th scale U-Boat surface from Border Model

Why were the guns on submarines still usable after being underwater? Wouldn't the guns rust or jam being exposed to sea water? - Quora

המערכה באוקיינוס האטלנטי (1939–1945) - מרכיבי הקרב – ויקיפדיה