What does ss mean for submarines?
The US Navy long ago coined a vessel classification code based on two or three letters, SS was assigned to Submarine ( by the way BB was assigned to Battleships, and DD to Destroyers, there are split variations such as DDR- Radar destroyer with heavy ECm equipment, SSN-Nuclear submarine, general type, SSBN, Nuclear sub, Ballistic Missile type ( such as Polaris using) and so on By itself SS designates a conventional, non-nuclear, that is Diesel-Electric submarine such as the U.S.S. Ling ( SS-297) which is a museum vessel in Hackensack, N.J. Take it in!
