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| History | |
|---|---|
 United Kingdom | |
| Name | Observer |
| Ordered | February 1915 |
| Builder | Fairfield, Govan |
| Laid down | 1 June 1915 |
| Launched | 1 May 1916 |
| Completed | 15 June 1916 |
| Out of service | 30 October 1921 |
| Fate | Sold to be broken up |
| General characteristics | |
| Class and type | Admiralty M-class destroyer |
| Displacement | 948 long tons (963 t) (normal) |
| Length | |
| Beam | 26 ft 8 in (8.1 m) |
| Draught | 8 ft 11 in (2.7 m) |
| Installed power | 3 Yarrow boilers, 27,800 shp (20,700 kW) |
| Propulsion | Brown-Curtiss steam turbines, 3 shafts |
| Speed | 34 knots (63 km/h; 39 mph) |
| Range | 2,530 nmi (4,690 km; 2,910 mi) at 15 kn (28 km/h; 17 mph) |
| Complement | 80 |
| Armament |
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HMS Observer was a Repeat Admiralty M-class destroyer that served in the Royal Navy during the First World War. The M class was an improvement on those of the preceding L class, capable of higher speed. Observer had a largely uneventful war. Joining the Fourteenth Destroyer Flotilla of the Grand Fleet in 1916, the vessel was soon involved in an exercise that involved most of the dreadnoughts of the First and Third Battle Squadrons but did not take part in any fleet actions with Germany. In 1917, the destroyer was a participant in anti-ship and anti-submarine patrols, but, once again, the ship did not engage any enemy warships. After the Armistice that ended the war, Observer was initially put in reserve and then sold in 1921 to be broken up.