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Hospital ships (AH) were given names related to their function, such as Comfort and Mercy. Landing ship, tank (LST) built for the United States Navy during and immediately after World War II were only given an LST-number hull designation, but on 1 July 1955, county or Louisiana-parish names were assigned to those ships which remained in service ...
This list includes ships that are owned and leased by the US Navy; ships that are formally commissioned, by way of ceremony, and non-commissioned. Ships denoted with the prefix "USS" are commissioned ships. Prior to commissioning, ships may be described as a pre-commissioning unit or PCU, but are officially referred to by name with no prefix. [1]
A ship prefix is a combination of letters, usually abbreviations, used in front of the name of a civilian or naval ship that has historically served numerous purposes, such as identifying the vessel's mode of propulsion, purpose, or ownership/nationality.
A heavily modified or repurposed ship may receive a new symbol, and either retain the hull number or receive a new one. Also, the system of symbols has changed a number of times since it was introduced in 1907, so ships' symbols sometimes change without anything being done to the physical ship.
When writing about civilian ships, consider omitting common prefixes (e.g. "MS") from the article body, as italicizing the ship's name is often enough to identify it as a ship. Do not use the definite article the before a prefix or when introducing a ship for the first time; e.g., at the beginning of the lead section:
List of United States Navy ships is a comprehensive listing of all ships that have been in service to the United States Navy during the history of that service. The US Navy maintains its official list of ships past and present at the Naval Vessel Register (NVR), [ 1 ] although it does not include early vessels.
Ship name – a proper noun chosen at the shipowner's discretion; may change several times during the vessel's lifetime Ship class – a common name for a group of ships with similar design, usually named for the first vessel of the class, e.g. " Nimitz -class aircraft carrier"
In comparison, U.S. Navy ships commissioned into military service have the designation "USS", are armed, and are crewed by U.S. Navy personnel. Additionally, the United States Naval Ships hull classification symbol begins with "T-" to denote its civilian crew. The USNS prefix can be assigned only while the ship is owned by the U.S. Navy.