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The ''Arethusa''-class cruisers were a class of eight oil-fired
light cruiser A light cruiser is a type of small or medium-sized warship. The term is a shortening of the phrase "light armored cruiser", describing a small ship that carried armor in the same way as an armored cruiser: a protective belt and deck. Prior to thi ...
s of the
Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by Kingdom of England, English and Kingdom of Scotland, Scottish kings from the early medieval period, the first major maritime engagements were foug ...
all ordered in September 1912, primarily for service in the
North Sea The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian S ...
. They had three funnels with the middle one somewhat larger in diameter than the others. All served in the
First World War World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fig ...
. They were found to be very cramped internally.


Design and description

The earlier
scout cruiser A scout cruiser was a type of warship of the early 20th century, which were smaller, faster, more lightly armed and armoured than protected cruisers or light cruisers, but larger than contemporary destroyers. Intended for fleet scouting duties ...
s were too slow to accomplish their intended duties of working with destroyer
flotilla A flotilla (from Spanish language, Spanish, meaning a small ''flota'' (Naval fleet, fleet) of ships), or naval flotilla, is a Tactical formation, formation of small warships that may be part of a larger fleet. Composition A flotilla is usually ...
s and defending the fleet against attacks by enemy destroyers. The primary emphasis of the ''Arethusa''-class cruisers was a design speed of , to allow them to lead destroyers in combat. In support of this goal, they were the first cruisers to use destroyer-type high-speed
steam turbine A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Fabrication of a modern steam turb ...
s and oil-fired
boiler A boiler is a closed vessel in which fluid (generally water) is heated. The fluid does not necessarily boil. The heated or vaporized fluid exits the boiler for use in various processes or heating applications, including water heating, centr ...
s were chosen to save weight and increase their power to meet the specification. They retained the side protection introduced in the later ships of the previous , but reverted to a mixed main armament that was a feature of the earlier ships of that class. The ships were long overall, with a
beam Beam may refer to: Streams of particles or energy * Light beam, or beam of light, a directional projection of light energy ** Laser beam * Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially localized g ...
of and a deep draught of .
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 ...
was at normalFriedman 2010, p. 384 and at full load. The ''Arethusa'' class were powered by four direct-drive steam turbines, each driving one
propeller shaft A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power and torque and rotation, usually used to connect ...
, which produced a total of and gave a speed of about .Preston, p. 55 The six ships that used Parsons turbines were equipped with cruising turbines on the outer shafts, but the two ships that used Brown-Curtis turbines were not so fitted. The turbines used steam generated by eight
Yarrow boiler Yarrow boilers are an important class of high-pressure water-tube boilers. They were developed by Yarrow & Co. (London), Shipbuilders and Engineers and were widely used on ships, particularly warships. The Yarrow boiler design is characteristic ...
s at a working pressure of . They carried tons of
fuel oil Fuel oil is any of various fractions obtained from the distillation of petroleum (crude oil). Such oils include distillates (the lighter fractions) and residues (the heavier fractions). Fuel oils include heavy fuel oil, marine fuel oil (MFO), bu ...
that gave the ships with cruising turbines a range of and for those without, both at .Pearsall, Part I, p. 210 The main armament of the ''Arethusa''-class ships was two BL 6-inch (152 mm) Mk XII guns that were mounted on the centreline fore and aft of the
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 ...
and six QF 4-inch Mk V guns in waist mountings. They were also fitted with a single QF 3-pounder anti-aircraft gun and four
torpedo tube A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed abo ...
s in two twin mounts.


Ships

* , built by Chatham Dockyard, laid down 28 October 1912, launched 25 October 1913, and completed August 1914. She was sunk by mine off
Felixstowe Felixstowe ( ) is a port town in Suffolk, England. The estimated population in 2017 was 24,521. The Port of Felixstowe is the largest container port in the United Kingdom. Felixstowe is approximately 116km (72 miles) northeast of London. H ...
on 11 February 1916. * , built by Devonport Dockyard, laid down 24 October 1912, launched 30 September 1913, and completed September 1914. She took part in the sinking of the German raider on 9 August 1915, was transferred to the Royal Canadian Navy in November 1920, and for sold for breaking up in August 1927. * , built by William Beardmore and Company, Dalmuir, laid down 9 January 1913, launched 14 May 1914, and completed December 1914. She also took part in the sinking of the German raider ''Meteor'' on 9 August 1915, and was sold for breaking up 25 October 1921. * , built by Beardmore, laid down 3 April 1913, launched 6 July 1914, and completed January 1915. She was sold for breaking up 9 June 1922. * , built by Vickers, Barrow in Furness, laid down 1 February 1913, launched 25 August 1914, and completed December 1914. She was damaged by a torpedo from the German submarine ''UB-29'' on 25 April 1916, but repaired, and was sold for breaking up in October 1924. * , built by Vickers, laid down 12 March 1913, launched 21 October 1914, and completed February 1915. She fought at the
Dardanelles The Dardanelles (; tr, Çanakkale Boğazı, lit=Strait of Çanakkale, el, Δαρδανέλλια, translit=Dardanéllia), also known as the Strait of Gallipoli from the Gallipoli peninsula or from Classical Antiquity as the Hellespont (; ...
in 1915, and was sold for breaking up 16 January 1923. * , built by Beardmore, laid down 3 June 1913, launched 14 January 1915, and completed March 1915. She was sold for breaking up 24 August 1922. * , built by Fairfield Shipbuilding and Engineering Company, Govan, laid down 21 December 1912, launched 28 April 1914, and completed August 1914. She took part in the
Battle off Texel The Battle off Texel, also known as the Action off Texel or the Action of 17 October 1914, was a naval battle off the coast of the Dutch island of Texel during the First World War. A British squadron, comprising one light cruiser and four des ...
on 17 October 1914, and was sold for breaking up 9 April 1923. ''Galatea'', ''Inconstant'', ''Phaeton'' and ''Royalist'' fought in 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 Sir John Jellicoe, and the Imperial German Navy's High Seas Fleet, under Vic ...
on 31 May 1916.


Notes


Bibliography

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External links


WWI British light cruisers
{{DEFAULTSORT:Arethusa Class Cruiser (1913) Cruiser classes Ship classes of the Royal Navy