NAVYPEDIA

Photo

Scarborough 1957

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
Blackpool	F77	1473	Harland & Wolff, Belfast	20.12.1954	14.2.1957	14.8.1958	to New Zealand 6.1966-4/1971 (Blackpool), BU 5.1978
Eastbourne	F73	143	Vickers-Armstrong, Tyne	13.1.1954	29.12.1955	9.1.1958	BU 3.1985
Scarborough	F63	142	Vickers-Armstrong, Tyne	11.9.1953	4.4.1955	10.5.1957	BU 8.1977
Tenby	F65	1233	Cammell Laird, Birkenhead	23.6.1953	4.10.1955	18.12.1957	BU 9.1977
Torquay	F43	1472	Harland & Wolff, Belfast	11.3.1953	1.7.1954	10.5.1956	BU 7.1987
Whitby	F36	1229	Cammell Laird, Birkenhead	30.9.1952	2.7.1954	10.7.1956	BU 10.1978

Technical data

Displacement standard, t	2150
Displacement full, t	2560
Length, m	109.7 pp 112.7 oa
Breadth, m	12.5
Draught, m	3.90 max
No of shafts	2
Machinery	2 sets Yarrow geared steam turbines, 2 Babcock & Wilcox boilers
Power, h. p.	30000
Max speed, kts	29
Fuel, t	oil 370
Endurance, nm(kts)	4500(12)
Armament	F36, 43, 63, 65: 1 x 2 - 120/45 Mk 6, 1 x 2 - 40/60 STAAG Mk 2, 2 x 2 - 533 TT, 8 - 533 TT, 2 x 3 - 305 Limbo ASWRL F73, 77: 1 x 2 - 120/45 Mk 6, 1 x 2 - 40/60 STAAG Mk 2, 2 x 3 - 305 Limbo ASWRL
Electronic equipment	Whitby: type 275, type 293Q, type 277Q, type 974 or type 978 radars, type 166, type 170, type 164 sonars, UA-3 ECM suite others: type 275, type 293Q, type 277Q, type 974 or type 978 radars, type 166, type 170, type 174 sonars, UA-3 ECM suite
Complement	152 - 231

Standard scale images

Graphics

Project history

The so-called 1945 Sloop studies had envisaged a 25kt ASW version of the standard hull, but the need for a Type 11 frigate very quickly disappeared with the postwar appearance of the last submarine. If such a design existed it had a short life, for the Staff Requirements raised the sea speed to 27kts, capable of being maintained in a seaway. Out of this emerged the Type 12 design, and the AA and AD, the downgraded, diesel-engined versions of the standard design.

The Type 12 hull-form was, and remains, one of the outstanding small warship designs of the century. A sharp 'V' form forward permitted the hull to be driven into a head sea without the 'panting' and 'slamming' which went with traditional destroyers, but amidships the hull widened to a deep square form. This acted against high smooth-water speed, but made for good sustained speed, ideal for pursuit of a submarine in rough weather. To reinforce this the big 3.6m diameter propellers were slow-running, making them quieter and more efficient, and a raised topgallant forecastle kept spray and green water off the bridge.

The armament was intended to be the twin 76mm/70 Mk 6 AA gun, a 40mm STAAG, two ASW Mk 10 triple mortars and no fewer than twelve TT for launching homing torpedoes, eight fixed and two twin training tubes. The Whitbys were prototypes and so went to sea with the existing, somewhat cumbersome 114mm, although production vessels were scheduled to get 76mm gun. The 533mm Mk 20 (E) torpedo (formerly 'Bidder') never became operational.

Because of the fine lines the armament and bridgework had to be far aft (this made for greater crew efficiency, but it did mean a crowded upper deck). In the first three ships (Whitby, Torquay and Scarborough) the funnel was a thin 'stovepipe' close to the lattice foremast (to resist atomic blast), and as the radar arrays suffered from smoke-corrosion (and to improve the ship's appearance) Eastbourne was given a thicker, raked funnel with a special domed cap. It was liked, and was subsequently retro-fitted to all three.

Modernizations

early 1960s, Whitby, Torquay, Scarborough, Tenby: - 2 x 2 - 533 TT, 8 - 533 TT

early 1960s, all: - 1 x 2 - 40/60, type 293Q, type 277Q radars; + 1 x 1 - 40/60 Mk 9, type 993 radar

late 1960s, Torquay, Scarborough, Tenby, Eastbourne: were altered for service as training frigates; - 1 x 1 - 40/60, 1 x 3 - 305 Limbo Mk 3 ASWRL, type 903 radar

1970s, all: - type 974 or type 978 radar; + type 1006 radar

1972, Torquay: + CAAIS CCS

Naval service

Scarborough and Tenby were temporarily transferred to Pakistan, but when the refit cost rose to £ 10m each the deal was cancelled. Blackpool was on loan to New Zealand from 1966 to 1971. Torquay was used for navigation and direction training, and carried out trials of the first Computer Assisted Action Information System (CAAIS).