Silhouette of LÉ Grainne (CM10)
History
United Kingdom
Name	HMS Oulston
Namesake	Oulston
Builder	Thornycroft
Launched	September 1953[1]
Out of service	1971
Identification	M1129
Republic of Ireland
Name	LÉ Grainne
Namesake	Gráinne, a legendary Irish princess
Acquired	1971
Commissioned	30 January 1971
Decommissioned	1987
Identification	CM10
Fate	Sold to Spanish interests for breaking, 1987
General characteristics
Class and type	Ton-class minesweeper
Displacement	360 tonnes
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
Armament	40 mm Bofors 2 × 20 mm Oerlikon AA

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.

Oulston was purchased from the Royal Navy in 1971, and commissioned as Gráinne. She was stricken in 1987 and sold to Spanish interests for breaking.

References