Ness-class Combat Stores Ship

The Ness-class combat stores ship were a class of three Combat stores ships built by Swan Hunter for the Royal Navy's Royal Fleet Auxiliary in the mid 1960s. They were purchased by the United States Navy in the mid 1980s and renamed Sirius-class. They served with the US Navy until the late 2000s when they were decommissioned.

Unit Run

• RFA Lyness (A339) - sold to the United States, renamed USNS Sirius (T-AFS-08)
• RFA Stromness (A344) - sold to the United States, renamed USNS Saturn (T-AFS-10)
• RFA Tarbatness (A345) - sold to the United States, renamed USNS Spica (T-AFS-09)