Acorn-class destroyer

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HMS FURY (1911) attending Audacious.jpg
HMS Fury
Class overview
Builders: John Brown and Company
William Denny & Brothers
Fairfield Shipbuilding & Engineering Company
R. W. Hawthorn Leslie & Company
Swan Hunter & Wigham Richardson
A. & J. Inglis
John I. Thornycroft & Company
J. Samuel White & Company
Preceded by: Beagle class
Succeeded by: Acheron class
Built: 1910–1911
In commission: 1910–1921
Completed: 20
Lost: 3
General characteristics
Type: Destroyer
Displacement: 730 to 780 tons
Length: 246 ft 6 in (75.13 m)
Beam: 25 ft 6 in (7.77 m)
Draught: 7 ft (2.1 m)–10 ft (3.0 m)
Propulsion: Oil-fired boilers
3 shaft steam turbines
13,500 shp (10,067 kW)
Speed: 27 knots (50 km/h)
Range: 170 tons oil
Complement: 72
Armament: 2 × BL 4-inch (101.6 mm) L/40 Mark VIII guns, mounting P Mark V
2 × QF 12-pounder 12 cwt Mark I mounting P Mark I
2 × 21 in (533 mm) torpedo tubes
For the World War II H-class destroyers, see H class destroyer (1937)

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.

Design[edit]

After the coal-burning Beagle class of the 1908–1909 shipbuilding programme, the British Admiralty decided to return to oil-fuelled machinery, as pioneered in the Tribal class 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 12 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][a] The ships had a crew of 72 officers and men.[1]

The revised machinery layout freed up deck space, allowing a heavier armament to be carried.[9] Gun armament consisted of two 4inch (102 mm) BL Mk VIII guns,[b] one on the ship's forecastle and one aft, and two 12 pounder (76 mm) QF 12 cwt guns[c] 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]

Service[edit]

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] [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 running around in the Orkneys 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 ships of the class had been sold for scrap by the end of 1921.[13][12]

Ships[edit]

  • Acorn — built by John Brown and Company, Clydebank, laid down 12 January 1910, launched 1 July 1910 and completed December 1910.[14] Sold for breaking up 29 November 1921.[12]
  • Alarm — built by John Brown and Company, Clydebank, laid down 7 February 1910, launched 29 August 1910 and completed March 1911.[14] Sold for breaking up 9 May 1921.[12]
  • Brisk — built by John Brown and Company, Clydebank, laid down 21 February 1910, launched 20 September 1910 and completed June 1911.[14] Sold for breaking up 15 November 1921.[12]
  • Cameleon — built by Fairfield Shipbuilding & Engineering Company, Govan. Laid down 6 December 1909, launched 2 June 1910 and completed December 1910.[14] Sold for breaking up 15 November 1921.[12]
  • Comet — built by Fairfield Shipbuilding & Engineering Company, Govan. Laid down 1 February 1910, launched 23 June 1910 and completed June 1911.[14] Torpedoed and sunk by Austrian U-boat in the Mediterranean 6 August 1918.[12]
  • Goldfinch — built by Fairfield Shipbuilding & Engineering Company, Govan. Laid down 23 February 1910, launched 12 July 1910 and completed February 1911.[14] Wrecked in fog on Start Point, Sanday, Orkney on the night of 18-19 February 1915.[15]
  • Fury — built by A. & J. Inglis, Pointhouse, Glasgow. Laid down 3 March 1910, launched 25 April 1911 and completed February 1912.[14] Sold for breaking up 4 November 1921.[12]
  • Hope — built by Swan Hunter & Wigham Richardson, Wallsend. Laid down 9 December 1909, launched 6 September 1910 and completed March 1911.[14] Sold for breaking up at Malta in February 1920.[12]
  • Larne — built by John I. Thornycroft & Company, Woolston. Laid down 8 December 1909, launched 23 August 1910 and completed February 1911.[14] Sold for breaking up 9 May 1921.[12]
  • Lyra — built by John I. Thornycroft & Company, Woolston. Laid down 8 December 1909, launched 4 October 1910 and completed February 1911.[14] Sold for breaking up 9 May 1921.[12]
  • Martin — built by John I. Thornycroft & Company, Woolston. Laid down 21 December 1909, launched 15 December 1910 and completed March 1911.[14] Sold for breaking up 21 August 1920 at Malta.[12]
  • Minstrel — built by John I. Thornycroft & Company, Woolston. Laid down 11 March 1910, launched 2 February 1911 and completed May 1911. Loaned to Imperial Japanese Navy from June 1917 to 1919 as Sendan.[14] Sold for breaking up 1 December 1921.[12]
  • Nemesis — built by R. W. Hawthorn Leslie & Company, Hebburn. Laid down 24 November 1911, launched 9 August 1910 and completed March 1911. Loaned to Imperial Japanese Navy from June 1917 to 1919 as Kanran.[14] Sold for breaking up 26 November 1921.[12]
  • Nereide — built by R. W. Hawthorn Leslie & Company, Hebburn. Laid down 3 December 1912, launched 6 September 1910 and completed March 1911.[14] Sold for breaking up 1 December 1921.[12]
  • Nymphe — built by R. W. Hawthorn Leslie & Company, Hebburn. Laid down 8 December 1909, launched 31 January 1911, and completed May 1911.[14] Sold for breaking up 9 May 1921.[12]
  • Redpole — built by J. Samuel White & Company, Cowes. Laid down 10 December 1909, launched 24 June 1910 and completed February 1911. Sold for breaking up 9 May 1921.[12]
  • Rifleman — built by J. Samuel White & Company, Cowes. Laid down 21 December 1909, launched 22 August 1910 and completed March 1911.[14] Sold for breaking up 9 May 1921.[12]
  • Ruby — built by J. Samuel White & Company, Cowes. Laid down 15 February 1910, launched 4 November 1910 and completed 7 April 1911.[14] Sold for breaking up 9 May 1921.[12]
  • Sheldrake — built by William Denny & Brothers, Dumbarton. Laid down 15 January 1910, launched 18 January 1911 and completed 19 May 1911.[14] Sold for breaking up 9 May 1921.[12]
  • Staunch — built by William Denny & Brothers, Dumbarton. Laid down 15 January 1910, launched 29 October 1910 and completed March 1911.[14] Torpedoed and sunk by German U-boat 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

References[edit]

  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 abbrevation 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, 12cwt referring to the weight of the gun.
  1. ^ a b c d e f g h i Gardiner and Gray 1985, p. 74.
  2. ^ Brown 2010, p. 69.
  3. ^ a b 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. ^ a b c d e Friedman 2009, p. 122.
  9. ^ Friedman 2009, p. 118.
  10. ^ Friedman 2009, p. 147.
  11. ^ Gardiner and Gray 1985, pp. 18, 74.
  12. ^ a b c d e f g h i j k l m n o p q r s t u Dittmar and Colledge 1972, p. 61.
  13. ^ Gardiner and Gray 1985, p. 5.
  14. ^ a b c d e f g h i j k l m n o p q r s Friedman 2009, p. 306.
  15. ^ a b Moore 1990, p. 314.
  • Brown, David K. (2010). The Grand Fleet: Warship Design and Development 1906–1922. Barnsley, UK: Seaforth Publishing. ISBN 978-1-84832-085-7. 
  • Cocker, Maurice (1983). Destroyers of the Royal Navy, 1893-1981. Ian Allan. ISBN 0-7110-1075-7. 
  • Dittmar, F.J.; Colledge, J.J. (1972). British Warships 1914–1919. Shepperton, UK: Ian Allen. ISBN 0-7110-0380-7. 
  • Friedman, Norman (2009). British Destroyers: From Earliest Days to the Second World War. Barnsley, UK: Seaforth Publishing. ISBN 978-1-84832-049-9. 
  • Gardiner, Robert; Gray, Randal, eds. (1985). Conway's All The World's Fighting Ships 1906–1921. London: Conway Maritime Press. ISBN 0-85177-245-5. 
  • Manning, T.D. (1961). The British Destroyer. London: Putnam. OCLC 6470051. 
  • Moore, John (1990). Jane's Fighting Ships of World War I. London: Studio. ISBN 1-85170-378-0.