HMS Ambuscade was an of the Royal Navy and was launched in 1913. She served throughout the First World War, forming part of the Grand Fleet and taking part at the Battle of Jutland, serving in the Dover Patrol and spending the latter part of the war as a convoy escort. She was sold for scrapping in 1921. Construction Ambuscade was one of three s ordered from John Brown & Company of Clydebank as part of the 1911–1912 shipbuilding programme for the Royal Navy. In all, 20 Acasta-class ships were ordered as part of this programme, of which 12, including Ambuscade, were to the standard Admiralty design with the other eight ships to their builder's own designs. She was laid down, as yard number 411, on 7 March 1912 and launched on 25 January 1913. In 1912, as part of a general reorganisation of the Royal Navy's destroyers into alphabetical classes, the Acastas became the K class, and in 1913, it was decided to switch to names beginning with the class letter, with Ambuscade being allocated the name Keith, but this plan was abandoned for the class and Ambuscade completed under her original name in June 1913. Ambuscade was long between perpendiculars and overall, with a beam of and a draught of . Displacement was normal and deep load. Four Yarrow boilers fed steam to direct drive Brown-Curtis steam turbines rated at and driving two shafts. This gave a speed of . The ships had a crew of 73 officers and ratings. The ship's main gun armament consisted of three BL Mk VIII guns, with 120 rounds of ammunition carried per gun. Two torpedo tubes were fitted, while two reload torpedoes could be carried. The ship was fitted with a 2-pounder "pom-pom" anti-aircraft autocannon during the First World War, while in 1918 the torpedo tubes (and possibly one of the 4-inch guns) was removed to allow a heavy depth charge armament to be carried. Service On commissioning, Ambuscade, with her sister ships, joined the 4th Destroyer Flotilla of the Royal Navy Home Fleet, based at Portsmouth. On the outbreak of the First World War, the 4th Flotilla, including Ambuscade, became part of the Grand Fleet. On 15 December 1914, German battlecruisers, supported by the battleships of the main German High Seas Fleet set out on a raid against the coastal towns of Scarborough, Whitby and Hartlepool, with the intent of