Cameleon in Grand Harbour, Malta, 1917
History
United Kingdom
Name	Cameleon
Builder	Fairfield Shipbuilding and Engineering Company, Govan
Laid down	6 December 1909
Launched	2 June 1910
Commissioned	December 1910
Fate	Sold for scrap, 15 November 1921
General characteristics
Class and type	Acorn-class destroyer
Displacement	772 long tons (784 t)
Length	246 ft (75 m)
Beam	25 ft 5 in (7.7 m)
Draught	8 ft 6 in (2.6 m)
Installed power	4 Yarrow boilers 13,500 shp (10,100 kW)
Propulsion	3 shafts; 1 steam turbine
Speed	27 knots (50 km/h; 31 mph)
Range	1,540 nmi (2,850 km; 1,770 mi) at 15 knots (28 km/h; 17 mph)
Complement	72
Armament	2 × 4 in (102 mm) guns 2 × 12 pdr (3 in (76 mm) gun 2 × 21 in (533 mm) torpedo tubes

HMS Cameleon was one of 20 Acorn-class destroyers built for the Royal Navy in the 1910s. Completed in 1910, she saw active service in the First World War.

The Acorn class marked a return to oil-firing as pioneered in the Tribal or F class of 1905 and HMS Swift of 1907. The Admiralty provided general specifications, but each shipyard did their own detailed design so that ships often varied in size.^[1] The Acorns had an overall length of 246 feet (75 m), a beam of 25 feet 5 inches (7.7 m), and a deep draught of 8 feet 6 inches (2.6 m). The ships displaced 772 long tons (784 t) at deep load and their crew numbered 72 officers and ratings.^[2]

The destroyers were powered by a single Parsons steam turbine that drove three propeller shafts using steam provided by four Yarrow boilers. The engines developed a total of 13,500 shaft horsepower (10,100 kW) and were designed for a speed of 27 knots (50 km/h; 31 mph). Cameleon reached a speed of 28.2 knots (52.2 km/h; 32.5 mph) from 14,790 shp (11,030 kW) during her sea trials.^[3] The Acorns had a range of 1,540 nautical miles (2,850 km; 1,770 mi) at a cruising speed of 15 knots (28 km/h; 17 mph).^[2]

The primary armament of the ships consisted of a pair of BL 4-inch (102 mm) MK VIII guns in single, unprotected pivot mounts fore and aft of the superstructure. They were also armed with two single QF 12-pounder (3-inch (76 mm)) guns, one on each broadside between the forward and centre funnels. These destroyers were equipped with a pair of single rotating mounts for 21-inch (533 mm) torpedo tubes amidships and carried two reload torpedoes.^[4]

Cameleon was ordered under the 1909–1910 Naval Programme from Fairfield Shipbuilding & Engineering Company. The ship was laid down at the company's Govan shipyard on 6 December 1909, launched on 2 June 1910 and commissioned in December. She was sold for scrap on 21 November 1921.^[5]

• Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8.
• 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.
• March, Edgar J. (1966). British Destroyers: A History of Development, 1892–1953; Drawn by Admiralty Permission From Official Records & Returns, Ships' Covers & Building Plans. London: Seeley Service. OCLC 164893555.

• Acorn Class