LÉ Grainne

LÉ Gráinne (CM10) was a Ton-class minesweeper in the Irish Naval Service. She was the former HMS Oulston. She was named after Gráinne, a legendary princess who was promised to Fionn Mac Cumhail but ran away with his young follower Diarmuid.

Silhouette of LÉ Grainne (CM10)
History
United Kingdom
Name	HMS Oulston
Namesake	Oulston
Builder	Thornycroft
Launched	September 1953[1]
Out of service	1970
Renamed	1970
Identification	M1129
Ireland
Name	LÉ Grainne
Namesake	Gráinne, a legendary Irish princess
Acquired	1970
Commissioned	30 January 1971
Decommissioned	1987
Identification	CM10
Fate	Sold to Spanish interests for breaking, 1987
General characteristics
Class & type	Ton-class minesweeper
Displacement	360 tonnes[2]
Length	42.67 m (140.0 ft) overall
Beam	8.4 m (28 ft)
Draught	2.49 m (8 ft 2 in)
Speed	15 knots (28 km/h; 17 mph) maximum
Complement	30[2]
Armament	40 mm Bofors[2] 2 × 20 mm Oerlikon AA[2]

Oulston was purchased from the Royal Navy in December 1970 and entered Irish service in January 1971.^[2] The purchase coincided with the removal from service of the Irish Naval Service's only fisheries protection vessel, LÉ Maev.^[3] The official naming ceremony for the LÉ Gráinne was held in February 1971.^[4]

Involved in fisheries protection,^[5] she was stricken in 1987 and sold to a Spanish company for breaking.^[2]