EntityQ3551955· pop 10· linked from 256 articlesU-1221Sign in to save1943 Type IXC/40 submarineConnectionsType IX submarineEntitymotor-generatorEntityOberleutnant zur SeeEntity2 cm Flak 30/38/FlakvierlingEntityWorld War IIConceptHamburgEntityNazi GermanyConceptgeographic coordinate systemEntityInternational Standard Book NumberEntityKielEntitysubmarineEntitytonneEntitytorpedoEntityknotEntitydiesel engineEntitynautical mileEntitypropellerEntityKriegsmarineEntityMAN SECompanyJapanese battleship YamatoEntityCategories1943 shipsGerman Type IX submarinesMaritime incidents in April 1945Ship infoboxes without an imageU-boats commissioned in 1943U-boats sunk by US aircraftU-boats sunk in 1945World War II submarines of Germany