submarine | Gym Class Heroes | class action | class | Class A | working class | nuclear submarine | Anti-submarine warfare | DB Class 218 | Class War | British Rail Class 37 | Social class | British Rail Class 47 | Benmont Tench | Victorian Railways X class | GWR 3031 Class | Class D | British Rail Class 66 | anti-submarine warfare | World Class Championship Wrestling | Saved by the Bell: The New Class | Nimitz-class aircraft carrier | Middle Class Rut | Middle class | middle class | Mercedes-Benz G-Class | Master Class | master class | LNER Class A4 4468 Mallard | First class travel |
The Type XXI design directly influenced advanced post-war submarines, the GUPPY improvements to the American Gato, Balao, and Tench class submarines and the Soviet submarine projects designated by NATO as the Whiskey and Zulu classes.