"USNS" stands for United States Naval Ship. Unlike USS (United States Ship) which is a designation given to commissioned vessels in the U.S. Navy, USNS refers to Navy supply and transport vessels operated by the Military Sealift Command, but owned by the Navy.
The major difference is that commissioned vessels (warships, support vessels, etc.) are owned, operated, and crewed by the Navy and Naval personnel; USNS ships are owned by the Navy, operated by the MSC, and usually crewed by civilians.
This is what those terms stand for. SS stands for Steam Ship. USS stand for United State Ship. And HMS stands for His or Her Majesty's Ship.
"USNS" is an acronym for "United States Naval Ship". It typically refers to non-combat or support Navy vessels, such as hospital ships, freighters, etc.
There are 2 known ships with T-AH: USNS Mercy and USNS Comfort. I haven't been able to find anything where it could stand for or any explanation about it. My assumption would be that it's merely a way of classification. Most US Navy ships have something similar behind their name.
United States Navy, However 'USN' as represented on the United States Navy Chief, Senior Chief, Master Chiefs, etc., stand for Unity, Service, Navigation.
Attack on the USNS Card happened on 1964-05-02.
USNS New Bedford was created on 1950-07-01.
USNS New Bedford ended on 1994-10-28.
SS is short for Steam Ship and used on civilian ships. NS would be Nuclear Ship and there was at least one civilian nuclear powered vessel. USS is a prefix designation for a military ships that stand for "United States Ship". HMS is a prefix designation for a British ships that stand for "His(Her) Majesty's Ship". Other ship designations you may see are 'MS' which stands for 'Motor Ship' and 'M/V' which stands for 'Motor Vessel'.
USS stands for United States Ship. Other countries have similar abbreviations. While studying the American Civil War there are many CSS- Confederate States Ship. HMS stands for Her/His Majesty's Ship, referring to the Queen of England (or King if there is one).
it could stand for either steam ship or either sail ship.
Anchors Aweigh
United States Navy Service. NP