Salisbury-class frigate

The Type 61 Salisbury class were a class of four British aircraft direction (AD) (or radar picket) frigates built for the Royal Navy.

These ships were related to the Type 41 Leopard class frigates, but with reduced armament (one twin 4.5 inch mount vice two) to make way for more aircraft direction equipment, particularly the four-ton radar antenna of the Type 965 (AKE-2). Unlike the four Battle class AD conversions, the primary role of the Type 61 was not operations with fast carrier groups, for which their diesel power plant lacked the speed. The role of the Type 61 was as a seaworthy air ocean surveillance ship and air control ship to escort slow task forces, such as amphibious task forces. By the end of 1978 all had been relegated to non-combat roles, with one sold to Bangladesh.

The primary aircraft direction equipment fitted to the Type 61s was initially Type 960 (rapidly updated to Type 965 (AKE-2)) radar for aircraft warning and Type 982M radar for a degree of 3D cover and better air control over land. The Type 965 (AKE-2) had a large "double bedstead" antenna and the Type 982M radar had a smaller "hayrake" antenna.

Salisbury-class frigate
Class Ship
Type Frigate
Manufacturer HMNB Devonport
Origin United Kingdom - UK (Great Britain)
Country Name Origin Year
United Kingdom - UK (Great Britain) 1953
Country Name Operational Year Retirement Year
Bangladesh 1978 View
United Kingdom - UK (Great Britain) 1957 1985 View
ManufacturerName Production From Production To Quantity
HMNB Devonport View
Vickers-Armstrongs View
Vickers-Armstrongs View
Fairfield Shipbuilding and Engineering Company View
British Polar Engines View
Hawthorn Leslie and Company View
Cammell Laird View
PennantNameBuilderOrderedLaid DownLaunchedAccepted into serviceCommissionedEstimated building costFate
F32Salisbury(a) HM Dockyard, Devonport
(b) Vickers Armstrong (Engineers) Ltd, Barrow-in-Furness
21 August 195123 January 195225 June 195327 February 195727 February 1957£2,900,000Sale to Egypt cancelled 1978 whilst on delivery trip. May 1980 harbour training ship Devonport. Sunk as target 30 September 1985.
F59Chichester(a) The Fairfield Shipbuilding and Engineering Co Ltd, Govan, Glasgow
(b) British Polar Engines Ltd, Glasgow
28 June 195126 June 195321 June 1955May 195816 May 1958£3,291,000Converted to harbour guardship Hong Kong 1973; sold for breaking up 17 March 1981.
F61Llandaff(a) R & W Hawthorn Leslie and Co Ltd, Newcastle upon Tyne
(b) British Polar Engines Ltd, Glasgow
28 June 195127 August 195330 November 1955April 195811 April 1958£3,393,000To Bangladesh 10 December 1978 as Umar Farooq. Wrongly claimed sold for breaking up in April 1983. Not scrapped, still in active service.
F99Lincoln(a) The Fairfield Shipbuilding and Engineering Co Ltd, Govan, Glasgow
(b) Cammell Laird and Co (Shipbuilders and Engineers) Ltd, Birkenhead
28 June 19511 June 19556 April 1959July 19607 July 1960£3,685,000Sale to Egypt in 1978 cancelled. August 1979 recommissioned briefly as submarine target. Intended to be sold to Bangladesh in 1982, though this transfer did not take place. Broken up 1983.

Class overview
Operators:  Royal Navy
 Bangladesh Navy
Succeeded by: Leander-class frigate
Built: 1952–1959
In commission: 1957–1985 (British service)
1978– (Bangladesh service)
Planned: 7
Completed: 4
Cancelled: 3
Active: 1 in Bangladesh
Retired: 3
General characteristics
Displacement: 2,170 tons standard
2,400 tons full load
Length: 340 ft (100 m) o/a
Beam: 40 ft (12 m)
Draught: 15 ft 6 in (4.72 m)
Propulsion: 8 x Admiralty Standard Range ASR1 diesels, 14,400 shp (10,738 kW), 2 shafts
220 tons fuel oil
Speed: 24 kn (44 km/h)
Range: 7,500 nmi (13,900 km) at 16 kn (30 km/h)
Complement: 235
Sensors and
processing systems:
Type 960 air search radar, laterType 965 AKE-2
Type 293Q target indication radar,later Type 993n
Type 982 aircraft direction radar,later Type 986
Type 277Q height finding radar,later Type 278
Type 974 navigation radar, laterType 978
Type 285 fire control radar on director Mark 6M
Type 262 fire control on STAAGmount
Type 1010 Cossor Mark 10 IFF
Type 174 search sonar
Type 170 attack sonar
Armament: 1 × twin 4.5 in gun Mark 6
1 × twin 40 mm Bofors gun STAAG Mark 2, later;
1 × twin 40 mm Bofors gun Mk.5;Llandaff & Chichester
1 × Sea Cat GWS-20 SAM; Lincoln& Salisbury
1 × Squid A/S mortar

End notes