S and T-class destroyer
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HMS Terpsichore in 1945
|Name:||S and T class|
|Builders:||Hawthorn Leslie and Company
John Brown & Company
William Denny and Brothers
Scotts Shipbuilding and Engineering Company
J. Samuel White
|Operators:|| Royal Navy
Royal Netherlands Navy
Royal Norwegian Navy
|Preceded by:||Q and R|
|Succeeded by:||U and V|
|Displacement:||1,710 long tons (1,737 t) - 1,730 long tons (1,758 t) (standard nominal)
1,780 long tons (1,809 t) - 1,810 long tons (1,839 t) (actual)
2,505 long tons (2,545 t) - 2,545 long tons (2,586 t) (deep load)
|Length:||339 ft 6 in (103.48 m) pp
362 ft 9 in (110.57 m) oa
|Beam:||35 ft 8 in (10.87 m)|
|Draught:||14 ft 2 in (4.32 m)|
|Propulsion:||2 shaft Parsons geared turbines
2 Admiralty 3-drum boilers
|Speed:||36.75 knots (42.29 mph; 68.06 km/h)|
The S and T class was a class of sixteen destroyers of the Royal Navy launched in 1942–1943. They were built as two flotillas, known as the 5th and 6th Emergency Flotilla respectively, and they served as fleet and convoy escorts in World War II.
The S class, introduced the CP (central pivot) Mark XXII mounting for the QF Mark XII 4.7 in guns. This new mounting had a shield with a sharply raked front, to allow increased elevation (to 55 degrees), contrasting noticeably with the vertical front of the previous CP Mark XVIII, and easily differentiated the S class onwards from their immediate predecessors. The Savage was the exception in this respect, being fitted with four 4.5 in guns; a twin mounting forward and two singles aft. These ships used the Fuze Keeping Clock HA Fire Control Computer.
The quadruple mounting Mark VII for the QF 2 pounder pom-poms was replaced by the twin mounting Mark IV for the 40 mm Bofors gun. Known as the "Hazemeyer" (or "Haslemere"), this advanced mounting was tri-axially stabilised in order that a target could be kept in the sights on the pitching deck of a destroyer and was fitted with an analog fire control computer and Radar Type 282, a metric range finding set. The Hazemeyer design had been brought to Britain by the Dutch minelayer Willem van der Zaan that escaped German occupation in May 1940.
- Scorpion (to Royal Dutch Navy as Hr Ms Kortenaar, 1945)
- Scourge (to Royal Dutch Navy as Hr Ms Evertsen, 1946)
- Serapis (to Royal Dutch Navy as Hr Ms Piet Hein, 1945)
- Shark (to Norway as Svenner) (lost on 6 June 1944)
- Success (to Norway as Stord)
- Swift (lost on 24 June 1944)
- Type 15 frigate: postwar full conversion of Wartime Emergency Programme destroyers into first-rate fast anti-submarine frigates
- Type 16 frigate: postwar partial conversion of Wartime Emergency Programme destroyers into second-rate fast anti-submarine frigates
- Destroyer Weapons of WW2, Hodges/Friedman, ISBN 0-85177-137-8
- Colledge, J. J.; Warlow, Ben (2006) . Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8. OCLC 67375475.
- Raven, Alan; Roberts, John (1978). War Built Destroyers O to Z Classes. London: Bivouac Books. ISBN 0-85680-010-4.
- Whitley, M. J. (1988). Destroyers of World War 2. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-326-1.
- Destroyers of the Royal Navy, 1893–1981, Maurice Cocker, Ian Allan, ISBN 0-7110-1075-7
- Royal Navy Destroyers since 1945, Leo Marriot, Ian Allan, ISBN 0-7110-1817-0
- Conway's All the World's Fighting Ships, 1922-1946, Ed. Robert Gardiner, Naval Institute Press, ISBN 0-87021-913-8
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