Acorn-class destroyer

Last updated

HMS FURY (1911) attending Audacious.jpg
HMS Fury
Class overview
Builders
Operators
Preceded by Beagleclass
Succeeded by Acheronclass
Built1910–1911
In commission1910–1921
Completed20
Lost3
General characteristics
Type Destroyer
Displacement730 to 780 tons
Length246 ft 6 in (75.13 m)
Beam25 ft 6 in (7.77 m)
Draught7 ft (2.1 m)–10 ft (3.0 m)
Propulsion
Speed27 knots (50 km/h)
Endurance170 tons oil
Complement72
Armament

The Acorn class (officially redesignated the H class in 1913) was a class of twenty destroyers of the Royal Navy all built under the 1909-1910 Programme, and completed between 1910 and 1911. The Acorns served during World War I.

Contents

Design

After the coal-burning Beagleclass of the 1908–1909 shipbuilding programme, the British Admiralty decided to return to oil-fuelled machinery, as pioneered in the Tribalclass of 1905 and HMS Swift of 1907, for the destroyers to be built under the 1909–1910 programme, which became the Acorn class. [1] This change allowed a smaller vessel than the Beagles even with an increase in armament. [2] [3]

While the detailed design of earlier destroyer classes was left to the builders resulting in individual ships differing considerably, this changed for the Acorns, where a standard hull design was used, allowing more shipyards to bid for orders, thus driving down costs, while reducing the time and effort required for the Admiralty to check and approve each builder's designs. Machinery design, however, was still left to the builders, although it had to fit into the space allowed in the standard design. [1] [4] [5] They had a reasonably uniform appearance, with three funnels, a tall, thin fore funnel, a short, thick central and a short narrow after stack. [3] [6]

The ships were 240 feet 0 inches (73.15 m) long between perpendiculars and 246 feet 0 inches (74.98 m) overall, with a beam of 25 feet 3 inches (7.70 m) and a draught of between 7 feet 4+1⁄2 inches (2.248 m) and 8 feet 10 inches (2.69 m) depending on load. Displacement was 760 long tons (770 t) normal and 855 long tons (869 t) full load. [7] Nineteen of the twenty ships of the Acorn class had three propeller shafts driven by Parsons steam turbines, fed by four boilers (White-Forster boilers in the three J. Samuel White-built ships, (Redpole, Rifleman and Ruby), Yarrow boilers in the remaining ships), with the boiler out-takes routed to three funnels. The remaining ship of the class, the John Brown & Company-built Brisk, had a two shaft arrangement powered by Brown-Curtis impulse turbines. The ships were required to reach 27 knots (50 km/h; 31 mph), the same speed as the Beagle class, which was expected to need 13,500 shaft horsepower (10,100 kW). [1] [8] [lower-alpha 1] The ships had a crew of 72 officers and men. [1]

The revised machinery layout freed up deck space, allowing heavier armament to be carried. [9] Gun armament consisted of two 4-inch (102 mm) BL Mk VIII guns, [lower-alpha 2] one on the ship's forecastle and one aft, and two 12-pounder (76 mm) QF 12 cwt guns [lower-alpha 3] carried in the waist position between the first two funnels. [1] [8] Unlike the Beagles, the forecastle gun was not raised on a bandstand, as it was felt that in heavy seas this generated additional spray. [8] As with the Beagles, torpedo armament consisted of two 21-inch (533 mm) torpedo tubes, with two reload torpedoes carried, although the tubes were longer, allowing more modern torpedoes to be carried. The torpedo tubes were aft of the funnels, mounted singly with a searchlight position between them. [8] Wartime modifications included the addition of a 3-pounder (47 mm) Vickers anti-aircraft gun and depth charges. [1] [10]

The Acorns were followed, in the 1910-11 Programme, by the Acheronclass (later known as the 'I' class).

Service

HMS Hope, c. 1914 HMS Hope.jpg
HMS Hope, c. 1914

On commissioning, between December 1910 and February 1912, the ships of the class joined the 2nd Destroyer Flotilla of the Royal Navy's Home Fleet, replacing River-class destroyers. [1] They were officially redesignated the H class in October 1913 as part of a general re-designation of the Royal Navy's destroyers. [11]

The ships of the class remained members of the 2nd Flotilla on the outbreak of the First World War, when the flotilla became part of the Grand Fleet. Some ships of the class were sent to the Mediterranean in 1915, with all surviving ships eventually being transferred there. Two of the class (Minstrel and Nemesis) were loaned to the Imperial Japanese Navy in 1917, being renamed Sendan and Kanran, and were returned in 1919. Three ships of the class were lost during the war, one (Goldfinch) ran aground at Start Point in Sanday, one of the Orkney Islands, in 1915, while the other two ships, Comet and Staunch, were sunk by enemy submarines in the Mediterranean. [1] [12]

Following the end of the war, the Royal Navy quickly disposed of large numbers of older ships, including the Acorn class. All remaining ships of the class had been sold for scrap by the end of 1921. [12] [13]

Ships

NameBuilderLaid downLaunch dateCompletedFate
Acorn John Brown and Company, Clydebank 12 January 19101 July 1910December 1910. [14] Sold for breaking up 29 November 1921. [12]
Alarm John Brown and Company, Clydebank7 February 191029 August 1910March 1911. [14] Sold for breaking up 9 May 1921. [12]
Brisk John Brown and Company, Clydebank21 February 191020 September 1910June 1911. [14] Sold for breaking up 15 November 1921. [12]
Cameleon Fairfield Shipbuilding & Engineering Company, Govan 6 December 1909,2 June 1910December 1910. [14] Sold for breaking up 15 November 1921. [12]
Comet Fairfield Shipbuilding & Engineering Company, Govan1 February 191023 June 1910June 1911. [14] Torpedoed and sunk by Austrian U-boat in the Mediterranean 6 August 1918. [12]
Fury A. & J. Inglis, Pointhouse, Glasgow 3 March 191025 April 1911February 1912. [14] Sold for breaking up 4 November 1921. [12]
Goldfinch Fairfield Shipbuilding & Engineering Company, Govan23 February 191012 July 1910February 1911. [14] Wrecked in fog on Start Point, Sanday, Orkney on the night of 18–19 February 1915. [15]
Hope Swan Hunter & Wigham Richardson, Wallsend 9 December 19096 September 1910March 1911. [14] Sold for breaking up at Malta in February 1920. [12]
Larne John I. Thornycroft & Company, Woolston 8 December 190923 August 1910February 1911. [14] Sold for breaking up 9 May 1921. [12]
Lyra John I. Thornycroft & Company, Woolston8 December 19094 October 1910February 1911. [14] Sold for breaking up 9 May 1921. [12]
Martin John I. Thornycroft & Company, Woolston21 December 190915 December 1910March 1911. [14] Sold for breaking up 21 August 1920 at Malta. [12]
Minstrel John I. Thornycroft & Company, Woolston11 March 19102 February 1911May 1911.Loaned to Imperial Japanese Navy from June 1917 to 1919 as Sendan (栴檀). [14] Sold for breaking up 1 December 1921. [12]
Nemesis R. W. Hawthorn Leslie & Company, Hebburn 24 November 19119 August 1910March 1911Loaned to Imperial Japanese Navy from June 1917 to 1919 as Kanran (橄欖). [14] Sold for breaking up 26 November 1921. [12]
Nereide R. W. Hawthorn Leslie & Company, Hebburn3 December 19126 September 1910March 1911. [14] Sold for breaking up 1 December 1921. [12]
Nymphe R. W. Hawthorn Leslie & Company, Hebburn8 December 190931 January 1911May 1911 [14] Sold for breaking up 9 May 1921. [12]
Redpole J. Samuel White & Company, Cowes 10 December 190924 June 1910February 1911Sold for breaking up 9 May 1921. [12]
Rifleman J. Samuel White & Company, Cowes21 December 190922 August 1910March 1911. [14] Sold for breaking up 9 May 1921. [12]
Ruby J. Samuel White & Company, Cowes15 February 19104 November 19107 April 1911. [14] Sold for breaking up 9 May 1921. [12]
Sheldrake William Denny & Brothers, Dumbarton 15 January 191018 January 191119 May 1911. [14] Sold for breaking up 9 May 1921. [12]
Staunch William Denny & Brothers, Dumbarton15 January 191029 October 1910March 1911. [14] Torpedoed and sunk by German U-boat SM UC-38 off Gaza, Palestine 11 November 1917. [12] [15]
Fury (dark, centre picture) and Liverpool try to take the sinking battleship Audacious in tow. The view is from the passenger areas of the liner Olympic, 27 October 1914 HMS Liverpool tows HMS Audacious.jpg
Fury (dark, centre picture) and Liverpool try to take the sinking battleship Audacious in tow. The view is from the passenger areas of the liner Olympic, 27 October 1914

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References

Notes

  1. ↑ The power needed to reach the specified speed was greater than expected in some ships, with Acorn needing 15,072 shaft horsepower (11,239 kW) during sea trials to reach 27.335 knots (50.624 km/h; 31.457 mph). Other ships were faster, with Larne reaching 28.723 knots (53.195 km/h; 33.054 mph) with 14,900 shaft horsepower (11,100 kW) and Ruby reaching 30.335 knots (56.180 km/h; 34.909 mph) with 16,776 shaft horsepower (12,510 kW). [8]
  2. ↑ The abbreviation BL stood for Breech Loading. In British use it also indicated that the gun used a bagged charge, with QF (Quick Firing) meaning that the gun used a charge enclosed in a metal cartridge case.
  3. ↑ "Cwt" is the abbreviation for hundredweight, 12 cwt referring to the weight of the gun.

Citations

  1. 1 2 3 4 5 6 7 8 Gardiner and Gray 1985, p. 74.
  2. ↑ Brown 2010, p. 69.
  3. 1 2 Manning 1961, p. 57.
  4. ↑ Brown 2010, p. 68.
  5. ↑ Friedman 2009, pp. 118–119.
  6. ↑ Friedman 2009, p. 119.
  7. ↑ Friedman 2009, p. 295.
  8. 1 2 3 4 5 Friedman 2009, p. 122.
  9. ↑ Friedman 2009, p. 118.
  10. ↑ Friedman 2009, p. 147.
  11. ↑ Gardiner and Gray 1985, pp. 18, 74.
  12. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Dittmar and Colledge 1972, p. 61.
  13. ↑ Gardiner and Gray 1985, p. 5.
  14. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Friedman 2009, p. 306.
  15. 1 2 Moore 1990, p. 314.

Bibliography

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