HMS Shark (1918)
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The S class (initially known as the Modified ''Trenchant'' classMarch, ''op. cit.'' p.215.) was a
class Class or The Class may refer to: Common uses not otherwise categorized * Class (biology), a taxonomic rank * Class (knowledge representation), a collection of individuals or objects * Class (philosophy), an analytical concept used differentl ...
of 67
destroyer In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally developed in ...
s 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 The London Naval Treaty, officially the Treaty for the Limitation and Reduction of Naval Armament, was an agreement between the United Kingdom, Japan, France, Italy, and the United States that was signed on 22 April 1930. Seeking to address is ...
. Eleven survivors saw much action during the Second World War.


Background

In early 1917, the First World War had been going on for two and a half years. Despite the disappointing outcome of the
Battle of Jutland The Battle of Jutland (german: Skagerrakschlacht, the Battle of the Skagerrak) was a naval battle fought between Britain's Royal Navy Grand Fleet, under Admiral John Jellicoe, 1st Earl Jellicoe, Sir John Jellicoe, and the Imperial German Navy ...
the previous year, the British Grand Fleet, consisting of
battleship A battleship is a large armored warship with a main battery consisting of large caliber guns. It dominated naval warfare in the late 19th and early 20th centuries. The term ''battleship'' came into use in the late 1880s to describe a type of ...
s,
cruiser A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several roles. The term "cruiser", which has been in use for several hu ...
s, and destroyers and based in northern Scotland, was successfully confining the German surface navy to the German Bight, while enforcing a blockade of German maritime trade with the wider world. In southern North Sea, the Harwich Force and the Dover Patrol, both consisting of cruisers and destroyers, maintained control of the eastern approaches to the English Channel and the Thames Estuary and safeguarded British communications with France. German submarine attacks on British trade became increasingly effective during the autumn of 1916, and unrestricted submarine warfare was soon to begin; finding effective countermeasures was increasingly taxing for the Admiralty. In the Mediterranean, the Royal Navy provided support to the French and Italian Fleets countering the threat posed by the Austro-Hungarian and Turkish fleets. All of these diverse naval commitments placed huge demands on the Royal Navy's resources; in particular, the need for large numbers of destroyers was pressing. Since mid-1916, destroyer production had concentrated on the large and powerful V and W classes, intended to match large German destroyers reported to be under construction. However, the Admiralty had come to appreciate that these intelligence reports had been overstated, thus the next orders could revert to the smaller destroyers of the Modified R class of March 1916, which could be built in large numbers quickly and cheaply. The resultant design, formulated in February 1917, incorporated some wartime lessons and suggestions from destroyer officers serving with the fleet, thus was identified as a new class.


Design and construction

The new class had two
funnels A funnel is a tube or pipe that is wide at the top and narrow at the bottom, used for guiding liquid or powder into a small opening. Funnels are usually made of stainless steel, aluminium, glass, or plastic. The material used in its construc ...
, a long forecastle and a tall bridge, which unusually, was located ''behind'' the break in the
main deck The main deck of a ship is the uppermost complete deck extending from bow to stern. A steel ship's hull may be considered a structural beam with the main deck forming the upper flange of a box girder and the keel forming the lower strength memb ...
. Following consultations with sea-going officers, several novel features were included, principally to enhance sea-keeping capabilities in rough weather and battle-worthiness in night action. Consideration was given to having a well deck forward of the bridge with an additional pair of torpedo tubes, in the fashion of contemporary German ocean-going torpedo boats, but this arrangement was rejected because it would be detrimental to ship handling in rough weather. The design had a heavily raked stem and sheer forward, a slight turtleback on the fo'c's'le deck, and a rounded bridge front, intended to deflect waves. Two single 18-inch (450 mm) torpedo tubes were fitted under the bridge on single rotating mounts port and starboard, intended to be fired directly by the commanding officer with toggle ropes during night actions, and the searchlight was relocated aft, mounted on top of the aft torpedo tubes (this to avoid the bridge officers being blinded by its glare during night actions). The single 18-inch torpedo tubes proved to be of little use, and were soon removed in the majority of vessels as a weight-saving measure (only ''Tara'', ''Tintagel'', and ''Trojan'' retained theirs). The S class was built in two batches, the first 33 ordered on 9 April 1917 and the second batch of 36 in June 1917, respectively. Most were built to the design prepared by the Admiralty ("Admiralty S class"), finalized on 3 July 1917. As was common practice during the First World War, the Admiralty allowed two specialist destroyer builders, Thornycrofts and Yarrows a free hand to develop their own designs based on the current Admiralty designs, which other yards were contracted to build. Generally, these "specials" had considerably higher speeds; this performance enhancement stemmed largely from the higher quality of workmanship practiced by these specialist builders, rather than due to deficiencies of the Admiralty designs. Thus the seven vessels ordered from Yarrow were built to a distinct design ("Yarrow S class"); similarly the five ordered from Thornycroft were the "Thornycroft S class".


Engineering

Most of the Admiralty S class had Brown-Curtis single-reduction geared turbines; seven vessels (''Steadfast'', ''Sterling'', ''Stonehenge'', ''Stormcloud'', ''Tilbury'', ''Tintagel'', and ''Strenuous'') had
Parsons Parsons may refer to: Places In the United States: * Parsons, Kansas, a city * Parsons, Missouri, an unincorporated community * Parsons, Tennessee, a city * Parsons, West Virginia, a town * Camp Parsons, a Boy Scout camp in the state of Washingto ...
Impulse-Reaction turbines, instead. Three Yarrow boilers (maximum pressure ) were fitted in all except the vessels built by Whites (which had White-Forster boilers). The highest trial speed or the Admiralty S class was recorded by ''Senator'' (with , 360.1 rpm) at a
displacement Displacement may refer to: Physical sciences Mathematics and Physics *Displacement (geometry), is the difference between the final and initial position of a point trajectory (for instance, the center of mass of a moving object). The actual path ...
of 1,019 tons.


Aircraft

''Senator'' conducted trials in June 1918 to test the feasibility of a flying off platform aft, with the intent of launching an aircraft with the ship proceeding full speed astern; however, the amount of spray rendered this proposal unworkable. Later (c. 1927–28) both ''Stronghold'' and ''Thanet'' were fitted with a cordite catapult for launching aircraft from their fo'c's'le (the forward gun was removed); they were used to test the
Larynx The larynx (), commonly called the voice box, is an organ in the top of the neck involved in breathing, producing sound and protecting the trachea against food aspiration. The opening of larynx into pharynx known as the laryngeal inlet is about ...
, an early experimental type of
cruise missile A cruise missile is a guided missile used against terrestrial or naval targets that remains in the atmosphere and flies the major portion of its flight path at approximately constant speed. Cruise missiles are designed to deliver a large warhe ...
. Various S-class destroyers were used at different times during the 1920s and 1930s as attendant vessels for aircraft carriers: ''Searcher'' in the
Mediterranean Fleet The British Mediterranean Fleet, also known as the Mediterranean Station, was a formation of the Royal Navy. The Fleet was one of the most prestigious commands in the navy for the majority of its history, defending the vital sea link between t ...
and ''Tyrian'', ''Sesame'', ''Sturdy'', and ''Stronghold'' in the
Home Fleet The Home Fleet was a fleet of the Royal Navy that operated from the United Kingdom's territorial waters from 1902 with intervals until 1967. In 1967, it was merged with the Mediterranean Fleet creating the new Western Fleet. Before the First ...
. Their armament was removed (in order to lighten the ship for maximum speed), and a davit installed on the fo'c's'le for recovery of ditched aircraft.


Target ship control vessel

''Shikari'' was completed in 1924 with the special role as a control vessel for the fleet's target ships (initially , replaced by in 1926). All armament was removed and a radio transmitter antenna added. She served in this role until the outbreak of the Second World War, when she was refitted as an operational unit.


Naming

The class, initially referred to as the "Modified ''Trenchant'' class", was officially named the "S class" by the Admiralty Board in November 1917 (even though 26 out of 67 vessels had names beginning with T). Some of the R class also had names beginning with S or T, which can be a source of confusion. Some had rather obscure names: ''Sardonyx'' is a red onyx gemstone; ''Seabear'' (incorrectly spelt ''Sea Bear'' in some sources) is an archaic term for
polar bear The polar bear (''Ursus maritimus'') is a hypercarnivorous bear whose native range lies largely within the Arctic Circle, encompassing the Arctic Ocean, its surrounding seas and surrounding land masses. It is the largest extant bear specie ...
; ''Seafire'' is a term for marine
bioluminescence Bioluminescence is the production and emission of light by living organisms. It is a form of chemiluminescence. Bioluminescence occurs widely in marine vertebrates and invertebrates, as well as in some fungi, microorganisms including some b ...
; ''Seawolf'' is an archaic term for various species of voracious fish (such as the
wolffish Anarhichadidae, the wolffishes, sea wolves or wolf eels, is a family of marine ray finned fishes belonging to the order Scorpaeniformes. These are predatory, eel shaped fishes which are native to the cold waters of the Arctic, North Pacific and ...
) or marine mammals (such as the elephant seal or sea lion); ''Sepoy'' was an infantryman of the Indian army; ''Seraph'' is a type of angel; ''Serapis'' was an ancient Graeco-Egyptian god; ''Shikari'' is an Urdu term for a big game hunter or hunting guide in British India; ''Simoom'' (incorrectly spelt ''Simoon'' in some sources) is a dry desert wind in the Sahara (there was also an R Class destroyer of this name, sunk on 23 January 1917); ''Sirdar'' in a Persian title of nobility used to denote princes, noblemen, and other aristocrats; it was used as the title for the commander of the Anglo-Egyptian Army; ''Tara'' was the traditional seat of the High King of Ireland; ''Tryphon'' (Τρύφων) is a Greek given name, meaning 'gentle' or 'sweet' (famous historical figures bearing the name include a Seleucid Emperor of the second Century BCE, a Greek grammarian in the first century BCE, and a 3rd Century Christian Saint); ''Tyrian'' is a precious type of purple dye used in regal robes in antiquity. ''Sterling'' was originally ordered with the name ''Stirling'', apparently due to a typing error.


Ships in the class

''Abbreviations'': BU: broken up for scrap; RAN: Royal Australian Navy; RCN: Royal Canadian Navy; IJN: Imperial Japanese Navy.


Admiralty S class


Thornycroft S class

John I. Thornycroft & Company Limited, based at Woolston, Southampton, was a shipbuilding firm specializing in construction of destroyers and other fast vessels. These five vessels were built to Thornycroft's own design, based on a modified version of their R-class destroyer .March, ''op. cit.'', p.217. Thornycrofts emphasized improved performance via larger, more powerful machinery. In order to incorporate larger boilers, the beam was increased by (with a metacentric height .March, ''op. cit.'', p.220) The increased stability allowed a higher mounting for the forward gun, which was placed on a
superstructure A superstructure is an upward extension of an existing structure above a baseline. This term is applied to various kinds of physical structures such as buildings, bridges, or ships. Aboard ships and large boats On water craft, the superstruct ...
that acted as a breakwater. They had a designed power of ; on trials, ''Tobago'' made with , on a displacement of 979 tons. The first two were ordered in April 1917 and the last three in June 1917. The 18-inch torpedoes under the bridge were fixed athwartship, rather than being rotating mounts as was the case in the Admiralty S-class.


Yarrow S class

Yarrow & Company, Limited, based at
Scotstoun Scotstoun ( gd, Baile an Sgotaich) is an area of Glasgow, Scotland, west of Glasgow City Centre. It is bounded by Garscadden and Yoker to the west, Victoria Park, Jordanhill and Whiteinch to the east, Jordanhill to the north and the River Clyde ...
in the west of Glasgow, were another firm specializing in construction of destroyers and similar vessels. These seven vessels were built to Yarrow's own design, based on a modified version of ''Ulleswater'' ( Yarrow R class). By reducing the weights of both hull and machinery, Yarrows were able to produce much faster vessels. In order to save weight, they had direct-dive Brown-Curtis turbines rated at only ; however on trials ''Tyrian'' made with on 786 tons displacement. Initially five were to be ordered in April 1917, however two more (''Torch'' and ''Tomahawk'') were added, replacing previous orders for two W-class destroyers (''Wayfarer'' and ''Woodpecker''). This change was made at the request of
Sir Alfred Yarrow Sir Alfred Fernandez Yarrow, 1st Baronet, (13 January 1842 – 24 January 1932) was a British shipbuilder who started a shipbuilding dynasty, Yarrow Shipbuilders. Origins Yarrow was born of humble origins in East London, the son of Esther ( ...
to streamline production; otherwise, his yard would have had three different designs under construction at the same time.


Operational service

These vessels saw comparatively little action, most being completed in the closing stages or after the end of the First World War, and scrapped before the start of Second World War.


First World War

The first S-class destroyer to be completed, ''Simoom'', joined the Grand Fleet in April 1918. The Commodore(F) commanding the Grand Fleet destroyer flotillas did not approve of the design, largely because of the 18-inch torpedoes, which were considered useless. The C-in-C, Admiral David Beatty, concurred; he had only consented to the design on the understanding that they would be employed at Harwich or Dover, while the Grand Fleet got W-class ships with six 21-inch torpedo tubes. However, despite his wishes, most of them were allocated to the Grand Fleet on completion. ''Senator'' and ''Sikh'' were with the Dover Patrol from June–August 1918, before going to the Mediterranean, where ''Shark'', ''Tilbury'' and ''Tribune'' followed. At the time of the armistice in November 1918, there were 27 vessels were in commission, allocated as follows *
5th Destroyer Flotilla The British 5th Destroyer Flotilla, or Fifth Destroyer Flotilla, was a naval formation of the Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the ...
( Mudros): ''Senator'', ''Sikh'', ''Shark'', ''Tilbury'', ''Tribune''. *
10th Destroyer Flotilla The British 10th Destroyer Flotilla, or Tenth Destroyer Flotilla, was a military formation of the Royal Navy from March from 1914 to 1919. It was reformed on an ad hoc basis from 1940 to 1941 and finally from 1944 to 1945. History First created ...
( Harwich Force): ''Swallow''. *
12th Destroyer Flotilla The British 12th Destroyer Flotilla, or Twelfth Destroyer Flotilla, was a naval formation of the Royal Navy from November 1915 to March 1919 and again from September 1939 to 2 July 1943. History World War One The flotilla was first formed in Nov ...
(Grand Fleet): ''Scimitar'', ''Scotsman'', ''Scout'', ''Scythe'', ''Seabear'', ''Sepoy'', ''Simoom'', ''Sirdar'', ''Speedy'', ''Tomahawk'', ''Torch'', ''Trinidad'', ''Tryphon''. *
14th Destroyer Flotilla The14th Destroyer Flotilla, or Fourteenth Destroyer Flotilla, was a naval formation of the British Royal Navy from April 1916 to 11 February 1919 and again from 1 June 1940 to January 1944. History World War One The flotilla was first establishe ...
(Grand Fleet): ''Sabre'', ''Seafire'', ''Seraph'', ''Somme'', ''Sparrowhawk'', ''Splendid'', ''Tactician'', ''Tobago'' (to join: ''Searcher'', ''Sportive'', ''Tara'', ''Trojan'', ''Tumult'').


Post-war service, 1919–1932

The Royal Navy was re-organized in March and April 1919 into three principal fleets: the Atlantic Fleet (comprising the newest battleships and
battlecruiser The battlecruiser (also written as battle cruiser or battle-cruiser) was a type of capital ship of the first half of the 20th century. These were similar in displacement, armament and cost to battleships, but differed in form and balance of attr ...
s, with supporting cruisers and destroyers in home waters), the
Home Fleet The Home Fleet was a fleet of the Royal Navy that operated from the United Kingdom's territorial waters from 1902 with intervals until 1967. In 1967, it was merged with the Mediterranean Fleet creating the new Western Fleet. Before the First ...
(which comprised slightly less modern ships at lower complement; it was renamed the
Reserve Fleet A reserve fleet is a collection of naval vessels of all types that are fully equipped for service but are not currently needed; they are partially or fully decommissioned. A reserve fleet is informally said to be "in mothballs" or "mothballed"; a ...
on 1 November 1919) and the
Mediterranean Fleet The British Mediterranean Fleet, also known as the Mediterranean Station, was a formation of the Royal Navy. The Fleet was one of the most prestigious commands in the navy for the majority of its history, defending the vital sea link between t ...
; In addition, there were various overseas squadrons for policing the Empire (
Africa Station The Commander-in-Chief, Africa was the last title of a Royal Navy's formation commander located in South Africa from 1795 to 1939. Under varying titles, it was one of the longest-lived formations of the Royal Navy. It was also often known as the C ...
, East Indies Station, China Station and North America and West Indies Station), the Dominion Naval Forces, and commands based at the principal naval bases in the United Kingdom (i.e. Portsmouth,
Plymouth Plymouth () is a port city and unitary authority in South West England. It is located on the south coast of Devon, approximately south-west of Exeter and south-west of London. It is bordered by Cornwall to the west and south-west. Plymouth ...
,
Chatham Chatham may refer to: Places and jurisdictions Canada * Chatham Islands (British Columbia) * Chatham Sound, British Columbia * Chatham, New Brunswick, a former town, now a neighbourhood of Miramichi * Chatham (electoral district), New Brunswic ...
(The Nore) and Rosyth), which included large numbers of decommissioned vessels held in reserve with skeleton crews. Under this scheme, the destroyer flotillas were completely re-organized, with a standard composition of two leaders and 16 destroyers. The 1st, 2nd and 3rd flotillas ( V/W-class destroyers), were in the Atlantic Fleet; The Home Fleet had two flotillas (4th and 5th) of R-class vessels; The 6th Flotilla, comprising S-class destroyers, was sent to the Mediterranean Fleet, while the 7th Flotilla, also of S-class destroyers, formed a ready reserve at Rosyth. Organization, July 1919: * 6th Destroyer Flotilla (Mediterranean Fleet, all in full commission): ''Senator'', ''Seraph'', ''Shark'', ''Sikh'', ''Spear'', ''Speedy'', ''Sportive'', ''Steadfast'', ''Swallow'', ''Tilbury'', ''Tobago'', ''Tomahawk'', ''Torch'', ''Tribune'', ''Tryphon'', ''Tumult''. * 7th Destroyer Flotilla (Rosyth reserve): in full commission: ''Scout'', ''Seabear'', ''Seafire'', ''Somme'', ''Sparrowhawk''; in reserve: ''Sabre'', ''Scimitar'', ''Scotsman'', ''Scythe'', ''Searcher'', ''Sepoy'', ''Serapis'', ''Simoom'', ''Sirdar'', ''Splendid'', ''Trinidad''. * Attached to other flotillas (all in full commission): ''Tactician'', ''Trojan'' (both with 3rd DF, Atlantic Fleet); ''Sterling'' (temporarily with 4th D.F., Home Fleet). * other duties: ''Seawolf'' (tender to , Devonport), ''Strenuous'' (tender to , Portsmouth), ''Truant'' (tender to , Portsmouth). * In Reserve: at the Nore: ''Stalwart'', ''Success'', ''Tara'', ''Tasmania'', ''Tattoo'', ''Tenedos'', ''Tintagel''; at Portsmouth: ''Saladin'', ''Stronghold'', ''Swordsman'', ''Torbay'', ''Toreador'', ''Trusty'', ''Turquoise'', ''Tuscan''; at Plymouth: ''Sardonyx'', ''Serene'', ''Sesame'', ''Spindrift''. * building: ''Shamrock'', ''Shikari'', ''Stonehenge'', ''Stormcloud'', ''Sturdy'', ''Thanet'', ''Thracian'', ''Tourmaline'', ''Turbulent'', ''Tyrian''.


Russian Civil War

A destroyer division consisting of four of these ships, ''Seafire'', ''Scotsman'', ''Scout'' and ''Seabear'' (under Commander A. B. Cunningham in ''Seafire''), was part of Admiral Walter Cowan's squadron March–May 1919 during the British campaign in the Baltic (1918–19). Among other duties, they were involved in the Latvian War of Independence, foiling an attempted coup by German troops in the port of Libau. During 1919–20 the S-class destroyers in the Mediterranean participated in the British intervention in southern Russia, giving military aid to the White Russian forces under Generals
Denikin Anton Ivanovich Denikin (russian: Анто́н Ива́нович Дени́кин, link= ; 16 December Old_Style_and_New_Style_dates">O.S._4_December.html" ;"title="Old_Style_and_New_Style_dates.html" ;"title="nowiki/>Old Style and New St ...
and Wrangel. In particular, ''Tomahawk'' and ''Tribune'' helped defend the Perekop line in January 1920; ''Sportive'' look part in the evacuation of White Troops from Odessa in February 1920; ''Steadfast'', ''Sikh'' and ''Seraph'' were involved in the evacuation of Novorossik in March 1920; and ''Seraph'' and ''Shamrock'' in the final evacuation from the Crimea in November 1920, while ''Tourmaline'' and ''Tobago'' patrolled off Novorossisk and Tuapse to intercept any Soviet attempts to interfere (''Tobago'' hit a mine during these operations, and was consequently scrapped).


Irish Civil War

After the Irish Free State came into being on 6 December 1922, the Royal Navy retained the right to base ships at three Treaty Ports: Berehaven, Queenstown/Cobh and Lough Swilly. In order to maintain a naval presence in these ports, ''Seawolf'', ''Scythe'' and ''Sesame'' were commissioned at reduced complement as independent commands in Irish waters during the 1920s. ''Scythe'' had a minor involvement in the
Irish Civil War The Irish Civil War ( ga, Cogadh Cathartha na hÉireann; 28 June 1922 – 24 May 1923) was a conflict that followed the Irish War of Independence and accompanied the establishment of the Irish Free State, an entity independent from the United ...
when machine gun fire was directed at her while moored at Spike Island (Queenstown harbour) on 21 March 1924. The S class serving in Irish waters had all been replaced with more modern vessels by 1931.


Mediterranean, Atlantic Fleet and China

In 1921 British destroyer flotillas were re-organized into formations consisting of one leader plus eight destroyers. The S-class destroyers, which formed the Mediterranean Fleet's destroyer force at that time, became the 7th and 8th Flotillas. Organization, January 1923: * 7th Destroyer Flotilla (Mediterranean Fleet): leader ; ''Shark'', ''Sikh'', ''Sepoy'', ''Trinidad'', ''Tribune'', ''Spear'', ''Sparrowhawk'', ''Senator''. * 8th Destroyer Flotilla (Mediterranean Fleet): leader ; ''Sidar'', ''Sportive'', ''Splendid'', ''Tourmaline'', ''Seraph'', ''Serapis'', ''Somme'', ''Swallow''. * Queenstown Command: ''Seawolf'', ''Tilbury''. * Royal Australian Navy: ''Tasmania'', ''Stalwart''; in reserve: ''Success'', ''Swordsman'', ''Tattoo''. * other duties: ''Tara'' (tender to , Devonport), ''Truant'' (tender to ''Victory'', Portsmouth). * In Reserve: at The Nore: ''Thracian'', ''Shamrock'', ''Steadfast'', ''Sabre'', ''Tenedos'', ''Thanet'', ''Turbulent'', ''Tintagel''; at Portsmouth: ''Saladin'', ''Turquoise'', ''Tyrian'', ''Stronghold'', ''Sturdy'', ''Trojan'', ''Trusty'', ''Torbay'', ''Toreador''; at Plymouth: ''Sterling'', ''Stormcloud'', ''Strenuous'', ''Scimitar'', ''Scotsman'', ''Scout'', ''Simoom'', ''Scythe'', ''Seabear'', ''Seafire'', ''Searcher'', ''Serene'', ''Sesame'', ''Spindrift'', ''Sardonyx'', ''Tactician''; at Malta: ''Tomahawk'', ''Torch'', ''Tumult'', ''Tuscan''. * building: ''Shikari''. The 7th Flotilla returned to Home Waters to become part of the Atlantic Fleet in July 1923; it was re-designed as the 9th Flotilla in 1925 before being reduced to reserve by February 1926. The 8th Flotilla followed in October 1923, remaining in commission (with 40% complements) as part of the Atlantic Fleet until 1927. The flotilla was then deployed to the China Station during the period of tension precipitated by the threat to British concessions at Shanghai (see
Shanghai Defence Force The Shanghai Defence Force was a tri-service military formation established by the British Government to protect European nationals and their property in Shanghai from Chinese nationalist forces during a period of tension in 1927. History Following ...
). Organization, October 1930: * 8th Destroyer Flotilla (China Station): leader ; ''Sepoy'', ''Seraph'', ''Sirdar'', ''Somme'', ''Serapis'', ''Sterling'', ''Stormcloud'', ''Thracian'', * overseas guard ships: at Gibraltar: ''Splendid'', ''Tourmaline''; in Irish Treaty Ports: ''Seawolf'', ''Scythe''. * Royal Canadian Navy: ''Champlain'', ''Vancouver''. * other duties: ''Shikari'' (Fleet target service), ''Tara'' (tender to ''Vernon'', Devonport),''Truant'' (tender to ''Victory'', Portsmouth), ''Sesame'' (attached to Home Fleet Aircraft Carriers) * In Reserve: at Plymouth: ''Steadfast'', ''Thanet'', ''Tintagel''; at The Nore: ''Trinidad''; at Portsmouth: ''Tribune'', ''Tilbury'', ''Shamrock''; at Rosyth: ''Tuscan'', ''Senator'', ''Shark'', ''Sparrowhawk'', ''Swallow'', ''Sportive'', ''Strenuous'', ''Scimitar'', ''Scotsman'', ''Simoom'', ''Seabear'', ''Seafire'', ''Searcher'', ''Serene'', ''Spindrift'', ''Sardonyx'', ''Tactician'', ''Sabre'', ''Tenedos'', ''Turbulent'', ''Saladin'', ''Turquoise'', ''Stronghold'', ''Sturdy'', ''Trojan'', ''Trusty'', ''Scout''; in Australia: ''Tasmania'', ''Success'', ''Swordsman'', ''Stalwart'', ''Tattoo''. The S-class destroyers of the 8th Flotilla remained in China until 1931, when they were replaced by V/W-class ships, and came home to pay off. By 1933 only five remained active in British service: ''Shamrock'' and ''Searcher'' as Gibraltar guard ships, ''Shikari'' in the fleet target service, and ''Stronghold'' and ''Sardonyx'' as tenders at Portsmouth.


Service in Dominion navies

Australia
Five of the Admiralty S class, ''Stalwart'', ''Success'', ''Swordsman'', ''Tasmania'' and ''Tattoo'', along with the leader , were presented to the Royal Australian Navy in June 1919. The ships were all commissioned on 27 January 1920 in U.K., and sailed for Australia the following month, arriving in
Sydney Sydney ( ) is the capital city of the state of New South Wales, and the most populous city in both Australia and Oceania. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about towards the Blue Mountain ...
on 29 April 1920. They spent much of their careers in reserve or operating close to Sydney; ''Stalwart'' visited New Guinea in June–July 1924. and ''Tattoo'' made a trip to New Guinea and the Solomon Islands in September 1932. All were sold for scrapping on 4 June 1937 and were broken up at Penguin Ltd., of Balmain; the hulks of ''Swordsman'' and ''Stalwart'' were scuttled off Sydney in 1939. Canada
Two of the Thornycroft S class, ''Torbay'' and ''Toreador'', were loaned to the Royal Canadian Navy in 1927 and commissioned on 1 March 1928. They were renamed ''Champlain'' and ''Vancouver'' respectively. ''Champlain'' served on the east coast, ''Vancouver'' on the west, both mostly being engaged in sea training. They paid off on 25 November 1936 and were scrapped in 1937 in Canada.


Reserve and disposals, 1926–1938

Of 67 vessels completed, four were lost or scrapped as a result of damage on active service during 1919–22; five (Fairfield's ''Spear'' and ''Sikh'', and the Yarrow Specials ''Tomahawk'', ''Tumult'' and ''Torch'') were scrapped in the late 1920s. On 31 December 1930 the
London Naval Treaty The London Naval Treaty, officially the Treaty for the Limitation and Reduction of Naval Armament, was an agreement between the United Kingdom, Japan, France, Italy, and the United States that was signed on 22 April 1930. Seeking to address is ...
came into force, limiting RN destroyers to a total of 150,000 tons by 31 December 1936. As new construction joined the fleet, the S class, being less capable than the contemporary V/W-class ships (which had only slightly higher displacement), were sold for scrap: 13 in 1931, 9 in 1932, 6 in 1934 and 10 in 1935. The terms of the London treaty expired at the end of 1936, nevertheless 8 more were scrapped in 1937 (all but one being RCN/RAN vessels) and 1 in 1938. Eleven vessels survived to see service during the Second World War, six in European waters, five in the Far East.


Second World War service, European waters

Following the outbreak of war both ''Shikari'' (the disarmed remote control vessel for target ships) and ''Sabre'' (which had been disarmed as an aircraft bombing target ship) were refitted for active service as escort vessels. ''Sturdy'', which had been refitted as a minelayer, sailed for Hong Kong in 1939 but was retained in the Mediterranean as attendant destroyer to the
aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for carrying, arming, deploying, and recovering aircraft. Typically, it is the capital ship of a fleet, as it allows a ...
, which operated as a training carrier based at Toulon between November 1939 and the French collapse in June 1940, after which she returned to home waters. ''Sabre'' was damaged by an accident early in the war and was under repair until spring 1940. At the time of the Dunkirk evacuation in May 1940, ''Sabre'', ''Scimitar'' and ''Shikari'' were with the 16th Destroyer Flotilla at Harwich and ''Saladin'' with the 11th Destroyer Flotilla at Devonport; all participated in the evacuation, carrying over 12,000 troops between them. ''Saladin'' was severely damaged by air attack on 28 May 1940, while ''Shikari'' was the last ship to leave Dunkirk, (at 0340 hrs, 4 June 1940), with enemy troops only away. By June 1940 ''Sabre'', ''Shikari'', ''Sturdy'', ''Scimitar'', ''Saladin'' and ''Sardonyx'' (together with the last R-class destroyer, ) had formed the 22nd Destroyer Flotilla at Portsmouth; they remained there in readiness to repel a
German invasion German invasion may refer to: Pre-1900s * German invasion of Hungary (1063) World War I * German invasion of Belgium (1914) * German invasion of Luxembourg (1914) World War II * Invasion of Poland * German invasion of Belgium (1940) ...
, until the autumn, when they started being allocated as escorts to Atlantic convoys. ''Sturdy'' was lost on 30 October 40 while on such duty. In 1941–42 they were refitted as escort vessels: the forward 4-inch gun was retained, but the other guns and torpedo tubes were landed; in their place, two quadruple 0.5-inch anti-aircraft (AA) guns were mounted between the funnels; a single a 12-pounder AA gun replaced the forward bank of tubes, and eight depth charge throwers plus two stern racks were added (40–70 depth charges were carried). Later four single 20 mm AA replaced the 0.5-inch machine guns, and the number of depth charge throwers was reduced to four. Type 291 radar was added. Deep load displacement rose to 1385–1400 tons; Their over-loading caused them to roll terribly in rough North Atlantic weather. By January 1941 they were all allocated to Atlantic convoy escort groups based at
Derry Derry, officially Londonderry (), is the second-largest city in Northern Ireland and the fifth-largest city on the island of Ireland. The name ''Derry'' is an anglicisation of the Old Irish name (modern Irish: ) meaning 'oak grove'. The ...
, and later the 21st Escort Group based in Iceland, 1942–44. Their sole success against German U-boats was on 29 June 1941 when ''Scimitar'' was escorting Convoy HX 133 and participated in the destruction of ''U.651'' south of Iceland. As more modern ships reached the fleet in numbers, they transferred to coastal convoy work in Home Waters in late 1943-mid 1944. ''Scimitar'' and ''Saladin'' were involved in the Exercise Tiger debacle in April 1944. Most of them were paid off as training ships or to reserve in late 1944, although ''Sabre'' was still active as a coastal escort on VE Day.


Second World War service, Far East

''Thanet'', ''Thracian'', ''Scout'', ''Tenedos'' and ''Stronghold'' were refitted for service in the Far East as local defense destroyers (''Sturdy'', ''Scimitar'' and ''Sardonyx'' were intended to join them in 1939–40, thereby creating a full flotilla). ''Sturdy'', ''Tenedos'' and ''Stronghold'' were refitted as minelayers, their torpedo tubes and aft guns were replaced by stowage for 40 mines. ''Tenedos'' and ''Stronghold'' laid defensive minefields around Singapore and Malaya, 1939–41. At the outbreak of war with Japan, on 7 December 1941, ''Tenedos'' and ''Stronghold'' were at Singapore, while ''Thanet'', ''Thracian'' and ''Scout'' were at Hong Kong. ''Scout'' and ''Thanet'' were ordered to Singapore on 8 December 1941, while ''Thracian'' remained to take part in the defense of Hong Kong, and was scuttled on 19 December 1941. ''Tenedos'' formed part of Force Z during the ill-fated sortie 8–10 December 1941 in which and were sunk. ''Thanet'' and ''Stronghold'' were sunk during the fall of the Malay Barrier, January–March 1942, while ''Scout'' and ''Tenedos'' were assigned to the ABDA Western Striking Force, and escaped to Ceylon in March 1942 following the Japanese invasion of Java. ''Tenedos'' was later sunk by Japanese carrier aircraft at Colombo, 5 April 1942, while ''Scout'' remained in service in the Indian Ocean until December 1943; her refit at Bombay was abandoned as uneconomic and she was laid up at Trincomalee in June 1944 as an accommodation hulk; she was returned to UK in December 1945 and scrapped. ''Thracian'' was salved by the Japanese and used as ''Patrol Vessel No.101'' (第101号哨戒艇) (refloated 10 July 1942, in service 25 November 1942); she was assigned to the Yokosuka Naval District as a coastal escort in Japanese waters for most of 1943, before becoming a radar training vessel at Yokosuka in March 1944; she was returned to RN control at Hong Kong in October 1945 and scrapped locally in February 1946.


Losses WWI

* ''Tryphon'' was stranded on rocks off Mudros in the Aegean on 4 May 1919, laying on her port side for three weeks until salved by ''Melita'' in June 1919; she was towed to Malta and declared a total loss; her wreck was sold on 27 September 1920 to Agius Bros of Malta, and scrapped. * ''Stonehenge'', newly arrived in the Mediterranean from the Atlantic, was wrecked near Smyrna on 6 November 1920 * ''Tobago'' struck a mine on 12 November 1920 about northeast of Trebizond in the Black Sea. She sustained serious damage, with a hole on the port side of her engine room; she was towed by the light cruiser from Trebizond to Istanbul; after temporary repairs, she was towed to Malta by the battleship , but was found to be beyond economic repair; she was subsequently sold on 9 February 1922 for scrapping at Malta. * ''Speedy'' was sunk in collision with a tug in the Sea of Marmara on 24 September 1922, during the time of the Chanak Crisis (10 killed).


Losses WWII

* ''Sturdy'' was wrecked on the rocks at Sandaig on the west coast of Tiree () during a storm on 30 October 1940, while escorting convoy SC.8 (5 lives lost). * ''Thracian'' was damaged by air attack during the
battle of Hong Kong The Battle of Hong Kong (8–25 December 1941), also known as the Defence of Hong Kong and the Fall of Hong Kong, was one of the first battles of the Pacific War in World War II. On the same morning as the attack on Pearl Harbor, forces of the ...
and was scuttled by deliberate grounding on Round Island in Repulse Bay () on 16 December 1941; her crew subsequently took part in the land fighting (17 killed or died of wounds). * ''Thanet'' was sunk in action by gunfire of Japanese cruiser and destroyers , , , , and during the night action off Endau, Malaya (), 04:18 hrs, 27 January 1942; 38 killed in action (or executed by the Japanese). * ''Stronghold'': following the Japanese invasion of Java, ''Stronghold'' was carrying evacuees en route from Tjilatjap, Java to Australia, when she was intercepted and sunk by the Japanese cruiser , and destroyers and , 1858 hours 2 March 1942 at position (c. 300 miles due south of Tulungagung, Java). About fifty survivors were picked up by the (captured) small Dutch merchant ''Bintoehan'' that later transferred them to ''Maya''.; 83 were killed in action, including the commanding officer, Lt.Cdr. Giles Robert Pretor-Pinney. * ''Tenedos'' was sunk during the Japanese carrier aircraft attack at Colombo,
Ceylon Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
5 April 1942; she was hit by two direct bomb hits aft, after two near misses (one astern, the other abreast her fore-funnel); 33 were killed in action. The wreck was removed in 1944.


Opinion

Admiral Cunningham, the Royal Navy's most famous Admiral of the Second World War, had a high opinion of this class:


Notes

Notes to tables of ships


References


Bibliography

* * * * * * * * * * * * * * * * {{DEFAULTSORT:S-Class Destroyer (1917) Destroyer classes Ship classes of the Royal Navy