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Sandown-class minehunter
HMS Grimsby
HMS Grimsby
Class overview
Name: Sandown
Builders: Vosper Thornycroft, Woolston
Operators:  Royal Navy
 Royal Saudi Navy
 Estonian Navy
In service: 1989
Building: 0
Completed: 15
Active: 15
General characteristics
Type: Single role mine hunter
Displacement: 484 tons
Length: 52.5 m
Beam: 10.9 m
Draught: 2.3 m
Propulsion: Paxman Valenta 6RP200E diesels 1523 shp, diesel-electric drive
Voith Schneider Propellers
Schottel bow thrusters
Speed: 13 kts diesel, 6.5 kts electric
Complement: 34 (7 officers)
Sensors and
processing systems:
Kelvin Hughes 1007 navigation radar
Thales 2093 variable-depth sonar
Armament: 30 mm KCB gun
7.62 mm GPMG machine guns
Remote controlled submersibles as mine countermeasures

The Sandown-class is a class of minehunter originally built for the British Royal Navy. Sandown-class vessels also serve with the Royal Saudi Navy and the Estonian Navy (Merevägi). The first vessel was commissioned into Royal Navy service on 9 June 1989 and all the British ships are named after coastal towns and cities.

These small (53 m) fibreglass vessels are single role mine hunters (SRMH) rather than minesweepers. Twelve ships were built for the Royal Navy and three ships were exported to Saudi Arabia. Three Royal Navy vessels were decommissioned following the Strategic Defence Review in 2003; Sandown (January 2005), Inverness (April 2005) and Bridport (July 2004). A further ship, Cromer, was decommissioned and transferred to a training role at the Britannia Royal Naval College in Dartmouth in 2001 as Hindostan.

The three decommissioned vessels were sold to Estonia in September 2006. They were re-equipped with TCS (Tactical Control System) and the Atlas Elektronik Seafox ROV for mine disposal. The sonar system will be also be updated. The first ship (ex Sandown), delivered in 2007, has been named Admiral Cowan,[1] the second (ex-Inverness), was delivered in 2008 and named Sakala and the last (ex-Bridport) named Ugandi in 2009.


Name Pennant number Builder Launched Commissioned Home port Status
Royal Navy
Sandown M101 Vosper Thornycroft, Woolston 1988 1989 Sold to Estonia as Admiral Cowan
Inverness M102 Vosper Thornycroft 1990 1991 Sold to Estonia as Sakala
Cromer M103 Vosper Thornycroft 1990 1992 Dartmouth Training ship, renamed Hindostan
Walney M104 Vosper Thornycroft 1991 1992 Faslane decommissioned
Bridport M105 Vosper Thornycroft 1992 1993 Sold to Estonia as Ugandi
Penzance M106 Vosper Thornycroft 1997 1998 Faslane Active
Pembroke M107 Vosper Thornycroft 1997 1998 Faslane Active
Grimsby M108 Vosper Thornycroft 1998 1999 Faslane Active
Bangor M109 Vosper Thornycroft 1999 1999 Faslane Active
Ramsey M110 Vosper Thornycroft 1999 2000 Faslane Active
Blyth M111 Vosper Thornycroft 2000 2001 Faslane Active
Shoreham M112 Vosper Thornycroft 2001 2001 Faslane Active
Royal Saudi Arabian Navy
Al Jawf Vosper Thornycroft
Shaqra Vosper Thornycroft
Al Kharj Vosper Thornycroft
Estonian Navy
Admiral Cowan M313 Vosper Thornycroft 1988 2007 Tallinn Active
Sakala M314 Vosper Thornycroft 1990 2008 Tallinn Active
Ugandi M315 Vosper Thornycroft 1992 2009 Tallinn Active

See also


  • Britain's Modern Royal Navy, Paul Beaver, Patrick Stephens Limited, 1996, ISBN 1-85260-442-5

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