🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsPolskiTiếng ViệtРусскийالعربيةفارسی中文日本語EntityQ602503· pop 17· linked from 784 articlesU-31Also known as German submarine U-311936 Type VIIA submarineWikidata factsImageU-33 - Unterseeboot (1936) in Brockhaus 1937.jpgSources (1)wikidata.orgvia Wikidata · CC0On the mapAvailable in 17 languagesEspañolFrançaisDeutsch中文日本語РусскийItalianoالعربيةFinnishNederlandsPolskiConnectionsgross register tonnageEntityType VII submarineEntityCategories1936 shipsGerman Type VIIA submarinesMaritime incidents in March 1940Maritime incidents in November 1940Military units and formations of Nazi Germany in the Spanish Civil WarShips built in Bremen (state)U-boats commissioned in 1936U-boats sunk by British aircraftU-boats sunk by British warshipsU-boats sunk by depth chargesU-boats sunk in 1940