EntityQ301329· pop 7· linked from 607 articlesMackerel-class submarineSign in to savesubmarine classConnectionsGeneral Dynamics Electric BoatCompanyType VII submarineEntityPortsmouth Naval ShipyardEntityWorld War IIConceptWorld War IConceptVirginiaEntityConnecticutEntityInternational Standard Book NumberEntitysubmarineEntityAnnapolisEntitybatteryEntityWayback MachineEntitypublic domainEntityelectric motorEntityaircraft carrierEntitytonneEntityUnited States NavyEntityelectrical generatorEntitytorpedoEntitywarshipEntityCategoriesMackerel-class submarinesSubmarine classesWorld War II submarines of the United States