EntityQ289152· pop 7· linked from 14 articlesUSS X-1Sign in to savemidget submarineConnectionsUnited StatesCountryPhiladelphiaEntitygeographic coordinate systemEntityAnnapolisEntitypublic domainEntityLong IslandEntityUnited States NavyEntitydiesel engineEntityhydrogen peroxideEntityChesapeake BayEntityNew LondonEntityGrotonEntitylong tonEntitymuseum shipEntityFairchildEntityDeer ParkEntitymidget submarineEntityUnited States Naval Research LaboratoryEntityChesapeake Bay BridgeEntityDictionary of American Naval Fighting ShipsEntityCategories1955 shipsMidget submarinesMuseum ships in ConnecticutSubmarine museums in the United StatesSubmarines of the United States Navy