[2] The Yarrow-built ships differed in retaining the direct drive turbines of the M class and are therefore often called the Yarrow Later M-class.

[3] They were similar to the preceding Yarrow M class but distinguished by their greater tonnage, narrower beam and sloping sterns.

Power was provided by three Yarrow boilers feeding Parsons direct-drive steam turbines rated at 27,000 shaft horsepower (20,000 kW).

[10] Sybille was laid down by Yarrow at their shipyard in Scotstoun, Glasgow, in August 1915, launched on 5 February 1917 and completed during the same month.

[16] Between 16 and 17 October 1917, the destroyer was called upon to be part of a large force of 84 warships sent out to search for a German fleet based around a minelayer, although Sybille saw no action.

[17] On 1 October 1918, the ship took part in a flotilla led by the destroyer leader Montrose that sailed to intercept retreating German forces, but did not find any.

[18] After the Armistice of 11 November 1918 that ended the war, the Royal Navy returned to a peacetime level of strength and both the number of ships and the amount of personnel in service needed to be reduced to save money.

[21] In a brief respite, on 26 July 1924, the vessel participated as part of a flotilla of reserve destroyers in a naval review in front of George V.[22] Soon afterwards, the warship was retired and, on 5 November 1926, sold to Cashmore to be broken up at Newport.