🌐EnglishEnglishDeutschFrançaisPolskiPortuguêsالعربيةفارسی中文EntityQ835050· pop 8· linked from 36 articlesSM U-401914 Type U 31 submarineAvailable in 8 languagesFrançaisDeutsch中文PortuguêsالعربيةPolskiفارسیvia Wikidata sitelinks · CC0Connectionsmetric horsepowerEntitylength overallEntityCategories1914 shipsGerman Type U 31 submarinesMaritime incidents in 1915Ship infoboxes without an imageShips built in KielU-boats commissioned in 1914U-boats sunk by British submarinesU-boats sunk in 1915World War I shipwrecks in the North SeaWorld War I submarines of Germany