S-class destroyer (1917)

	Tenedos underway at high speed, 1921
Class overview
Builders	Alexander Stephen and Sons, Linthouse; John Brown & Company, Clydebank; William Denny & Brothers, Dumbarton; Swan Hunter & Wigham Richardson, Wallsend on Tyne; William Doxford & Sons, Sunderland; Fairfield Shipbuilding & Engineering Company, Govan; Palmers Shipbuilding & Iron Company, Hebburn on Tyne; Scott's Shipbuilding & Engineering Company, Greenock; J. Samuel White & Company, Cowes; William Beardmore & Company, Dalmuir; R. & W. Hawthorn Leslie & Company, Hebburn on Tyne; John I. Thornycroft & Company, Woolston; Yarrow and Company, Scotstoun;
Operators	Royal Navy; Royal Australian Navy; Royal Canadian Navy; Imperial Japanese Navy;
Preceded by	R class W class
Succeeded by	Modified W class
Subclasses	Thornycroft and Yarrow "specials"
In commission	1918–1945
Planned	69
Completed	67
Cancelled	2
Lost	6 wrecked or sunk; 2 constructive total loss; 1 captured (later returned);
General characteristics
Displacement	1,000 tons (normal); 1,220 tons (full load);
Length	265 ft (80.8 m) (pp); 276 ft (84.1 m) (oa);
Beam	26 ft 8 in (8.1 m)
Draught	9 ft 10 in (3.0 m)
Installed power	27,000 shp (20,134 kW)
Propulsion	2 shafts; 2 geared turbines; 3 × Yarrow boilers; 301 oil fuel;
Speed	32.5 knots (60.2 km/h; 37.4 mph) (deep); 36 knots (67 km/h; 41 mph) (normal);
Range	2,750 nmi (5,090 km; 3,160 mi) at 15 knots (28 km/h; 17 mph)
Complement	90
Armament	3 × QF 4-inch (102 mm) Mark IV guns on C.P. III mounting (120 rounds per gun); 1 × QF 2-pounder (40 mm) "pom-pom" anti-aircraft gun on H.A.II mounting (1000 rounds); 1 x 0.303 in (8 mm) Maxim machine gun (5000 rounds); 4 × 21 in (533 mm) Mk.IV torpedo tubes (two twin mounts); 4 Mk.II or Mk. IV torpedoes.; 2 × 18 in (457 mm) torpedo tubes (two single mounts); cold torpedoes.; 4 depth charge chutes (two manual, two hydraulic);

The S class (initially known as the Modified Trenchant class^[3]) was a class of 67 destroyers ordered for the Royal Navy in 1917 under the 11th and 12th Emergency War Programmes. They saw active service in the last months of the First World War and in the Russian and Irish Civil Wars during the early 1920s. Most were relegated to the reserve by the mid-1920s and subsequently scrapped under the terms of the London Naval Treaty. Eleven survivors saw much action during the Second World War.

^ ^a ^b "Torpedoes of the United Kingdom/Britain – Pre-World War II". NavWeaps.com. Retrieved 29 May 2017.
^ March, British Destroyers, p.219.
^ March, op. cit. p.215.

Cite error: There are <ref group=note> tags on this page, but the references will not show without a {{reflist|group=note}} template (see the help page).

[navweaps-1] "Torpedoes of the United Kingdom/Britain – Pre-World War II". NavWeaps.com. Retrieved 29 May 2017.

[March219-2] March, British Destroyers, p.219.

[March215-4] March, op. cit. p.215.

[note 1]

[3]

Class overview
Tenedos underway at high speed, 1921
Builders	Alexander Stephen and Sons, Linthouse John Brown & Company, Clydebank William Denny & Brothers, Dumbarton Swan Hunter & Wigham Richardson, Wallsend on Tyne William Doxford & Sons, Sunderland Fairfield Shipbuilding & Engineering Company, Govan Palmers Shipbuilding & Iron Company, Hebburn on Tyne Scott's Shipbuilding & Engineering Company, Greenock J. Samuel White & Company, Cowes William Beardmore & Company, Dalmuir R. & W. Hawthorn Leslie & Company, Hebburn on Tyne John I. Thornycroft & Company, Woolston Yarrow and Company, Scotstoun
Operators	Royal Navy Royal Australian Navy Royal Canadian Navy Imperial Japanese Navy
Preceded by	R class W class
Succeeded by	Modified W class
Subclasses	Thornycroft and Yarrow "specials"
In commission	1918–1945
Planned	69
Completed	67
Cancelled	2
Lost	6 wrecked or sunk 2 constructive total loss 1 captured (later returned)
General characteristics
Displacement	1,000 tons (normal) 1,220 tons (full load)
Length	265 ft (80.8 m) (pp) 276 ft (84.1 m) (oa)
Beam	26 ft 8 in (8.1 m)
Draught	9 ft 10 in (3.0 m)
Installed power	27,000 shp (20,134 kW)
Propulsion	2 shafts; 2 geared turbines 3 × Yarrow boilers 301 oil fuel
Speed	32.5 knots (60.2 km/h; 37.4 mph) (deep) 36 knots (67 km/h; 41 mph) (normal)
Range	2,750 nmi (5,090 km; 3,160 mi) at 15 knots (28 km/h; 17 mph)
Complement	90
Armament	3 × QF 4-inch (102 mm) Mark IV guns on C.P. III mounting (120 rounds per gun) 1 × QF 2-pounder (40 mm) "pom-pom" anti-aircraft gun on H.A.II mounting (1000 rounds) 1 x 0.303 in (8 mm) Maxim machine gun (5000 rounds) 4 × 21 in (533 mm) Mk.IV torpedo tubes (two twin mounts); 4 Mk.II or Mk. IV torpedoes. 2 × 18 in (457 mm) torpedo tubes (two single mounts); cold torpedoes^{[note 1]}. 4 depth charge chutes (two manual, two hydraulic)