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|Preceded by:||Admiralty V-class leader|
|Succeeded by:||Admiralty type leader|
|Length:||329 ft (100 m) o/a|
|Beam:||31 ft 6 in (9.60 m)|
|Draught:||12 ft 6 in (3.81 m)|
|Range:||500 tons oil|
The Thornycroft type leader or Shakespeare class were a class of five destroyer leaders designed by John I. Thornycroft & Company and built by them at Woolston, Southampton for the Royal Navy towards the end of World War I. They were named after historical naval leaders. Only Shakespeare and Spenser were completed in time for wartime service. The other three were completed after the war, Broke and Keppel after being towed to Royal dockyards for completion, and two further ships - Saunders and Spragge - were cancelled. The function of a leader was to carry the flag staff of a destroyer flotilla, therefore they were enlarged to carry additional crew, offices and signalling equipment, allowing a fifth gun to be carried. These ships were very similar to the Admiralty type leader, but had broad, slab-sided funnels characteristic of Thornycroft designs.
The design was used as the basis for several ships built for foreign navies in the 1920s.
The first two ships to this design were ordered under the War Emergency Programme, in April 1916, and the third - Wallace - in April 1917:
Four more were ordered from Thornycroft in April 1918, but with the end of the War the first pair were completed by HM Dockyards and the second pair were cancelled; the second ship was initially named Rooke, but was renamed Broke in April 1921. Two more vessels were ordered at the same time, to be built to this design by Cammell Laird, but it was subsequently decided to build these instead to the Admiralty type flotilla leader design and in the event both were subsequently cancelled:
The first HMS Montrose was one of eight Admiralty-type destroyer leaders, sometimes known as the Scott class. They were named after figures from Scottish history; Montrose was named for the Graham Dukes of Montrose. She was built during the First World War, but was completed too late for service then. However, she had a long career in the inter-war years and saw extensive service during the Second World War.
The V and W class was an amalgam of six similar classes of destroyer built for the Royal Navy under the 9th, 10th, 13th and 14th of fourteen War Programmes during the First World War and generally treated as one class. For their time they were among the most powerful and advanced ships of their type in the world, and set the trend for future British designs.
The Admiralty type leader, sometimes known as the Scott class, were a class of eight destroyer leaders designed and built for the Royal Navy towards the end of World War I. They were named after Scottish historical leaders. The function of a leader was to carry the flag staff of a destroyer flotilla, therefore they were enlarged to carry additional crew, offices and signalling equipment, allowing a fifth gun to be carried. These ships were very similar to the Thornycroft type leader, but the latter had broad, slab-sided funnels characteristic of Thornycroft designs, the Admiralty type having two narrow funnels of equal height.
The M class, more properly known as the Admiralty M class, were a class of 85 destroyers built for the Royal Navy that saw service during World War I. All ships were built to an identical - Admiralty - design, hence the class name. 18 other vessels which were officially included within the 'M' class were built to variant designs by three specialist builders - 10 by Yarrow, 6 by Thornycroft, and 2 by Hawthorn Leslie; however, these are listed in other articles.
The first R class were a class of 62 destroyers built between 1916 and 1917 for the Royal Navy. They were an improvement, specifically in the area of fuel economy, of the earlier Admiralty M-class destroyers. The most important difference was that the Admiralty R class had two shafts and geared turbines, compared with the three shafts and direct turbines of the Admiralty M class, but in appearance the R class could be distinguished from its predecessors by having the after 4-inch gun mounted in a bandstand. The Admiralty ordered the first two of this class of ships in May 1915. Another seventeen were ordered in July 1915, a further eight in December 1915, and a final twenty-three in March 1916.
The Marksman class were a class of flotilla leaders built for the Royal Navy. Two each were ordered in the naval programmes of 1913–14 and 1914–15 with a further three being ordered under the Emergency War Programme and all saw service during World War I.
The Acasta class was a class of twenty destroyers built for the Royal Navy under the Naval Programme of 1911 - 1912 that saw service during World War I. They were the last class of Royal Navy destroyers to have mixed names with no systematic theme When the class was designated as "K", names beginning with that letter were allocated to the ships but never used. The class saw extensive wartime service and seven were lost, including four at the Battle of Jutland.
The S class was a class of 67 destroyers ordered for the Royal Navy in 1917. They saw active service in the last months of the First World War and in the Russian and Irish Civil Wars during the early 1920s. Most were relegated to the reserve by the mid-1920s and subsequently scrapped under the terms of the London Naval Treaty. Eleven survivors saw much action during the Second World War.
The Aubrietia-class sloops were a class of twelve sloops built under the Emergency War Programme for the Royal Navy in World War I as part of the larger Flower class. They were also referred to as the "cabbage class", or "herbaceous borders". The Flowers were the first ships designed as minesweepers.
The 24 class was a class of minesweeping sloops. They were derived from the preceding Flower-class sloop, but designed to appear double-ended. Twenty-four ships to this design were ordered between December 1916 and April 1917 under the Emergency War Programme for the Royal Navy in World War I, although two of them were cancelled before launch. All were named after famous racehorses, but they were not named Racehorse class as the Admiralty realised that this could easily be confused in communications with the Racecourse class of paddle minesweepers, and they officially became the 24 class.
HMS Valkyrie was a First World War V-class flotilla leader of the Royal Navy. She was one of two destroyers ordered in July of 1916 from William Denny & Bros. Ltd shipyard under the 9th Order for Destroyers of the Emergency War Program of 1916–17. She was originally to be called HMS Malcolm but was renamed before being completed. The name Malcolm was later assigned to another destroyer leader.
HMS Tigress was an Acheron-class destroyer of the Royal Navy that served during World War I. She was built under the 1910–11 shipbuilding programme by R. W. Hawthorn Leslie & Company of Hebburn, was launched on 20 December 1911 and was sold for breaking on 9 May 1921.
HMS Keppel was a Thornycroft type flotilla leader built for the Royal Navy at the end of the First World War. She was completed too late to serve in that conflict, but saw extensive service in the inter war years and in World War II. She was an effective convoy escort and U-boat killer, being credited with the destruction of five U-boats during the Battle of the Atlantic. She was the second of three ships named for 18th century Admiral Augustus Keppel.
The fourth HMS Spragge (K572) and third ship of the name to enter service was a British Captain-class frigate of the Royal Navy in commission during World War II. Originally constructed as a United States Navy Buckley-class destroyer escort, she served in the Royal Navy from 1944 to 1946.
HMS Chelmer was a Thornycroft-type River-Class destroyer ordered by the Royal Navy under the 1903–1904 Naval Estimates. Named after the River Chelmer in eastern England, north-east of London, she was the first ship to carry this name in the Royal Navy.
HMS Hardy was a Royal Navy ship that was one of 20 Acasta-class destroyers. Serving during the First World War, she was part of the Grand Fleet at the Battle of Jutland. Hardy was built by John I. Thornycroft & Company and laid down on 13 November 1911. The ship was launched on 10 October 1912 and completed on 1 September 1913. She was the 6th vessel of the Royal Navy to bear the name Hardy and the third to receive battle honours.
HMS Rosalind was an R-class destroyer which served with the Royal Navy. The ship was launched by Thornycroft on 14 October 1916 as the first of five similar ships, and served as part of the Grand Fleet during World War I. The design was used as the basis for the subsequent five ships of the S-class also built by the yard. Rosalind served in an escort role in the Grand Fleet until it was disbanded at the end of the War and was sold to be scrapped on 21 April 1928.
HMS TB 5 was a Cricket-class coastal destroyer or torpedo-boat of the British Royal Navy. TB 9 was built by the shipbuilder J S White from 1905 to 1907. She was used for local patrol duties in the First World War and survived the war. She was sold for scrap in 1920.
The TB 114-class was a class of four 160-foot torpedo boats built for the British Royal Navy in 1903–1905 by the shipbuilder J. Samuel White. All four ships served in local defence flotillas during the First World War, with one of the ships being sunk in 1918. The remaining three ships were withdrawn from use after the end of the war, with the last of the class sold for scrap in 1921.