RFA Tarbatness (A345)

USNS Spica (T-AFS-9) underway, date unknown
Career (UK)
Name:	RFA Lyness
Ordered:	7 December 1964
Builder:	Swan Hunter
Yard number:	2018
Laid down:	15 April 1966
Launched:	28 February 1967
Commissioned:	10 August 1967
Decommissioned:	1980
Fate:	Chartered by US MSC, later bought
Career (USA)
Name:	USNS Spica
Acquired:	30 September 1981
Commissioned:	1 November 1981
Decommissioned:	26 January 2008
Renamed:	5 November 1981
Fate:	Awaiting disposal
General characteristics
Class & type:	Ness-class combat stores ship
Displacement:	16,792 long tons (17,061 t) full load
Length:	523 ft 4 in (159.51 m)
Beam:	72 ft 3 in (22.02 m)
Draft:	25 ft 6 in (7.77 m)
Propulsion:	1 × 8-cylinder Sulzer diesel
Speed:	17 knots (31 km/h)
Complement:	110 RFA + 50 Stores Working Party
Aviation facilities:	Fitted with a flight deck but no hangar facilities until purchased by USMSC

RFA Tarbatness (A345) was a fleet stores ship of the Royal Fleet Auxiliary.

In 1981, the ship was bought by the United States Military Sealift Command to serve as USNS Spica (T-AFS-9).