A flotilla leader was a warship of late 19th century and early 20th century navies suitable for commanding a flotilla of destroyers or other small warships, typically a small cruiser or a large destroyer (known as a destroyer leader). The flotilla leader provided space, equipment and staff for the flotilla commodore (who typically held the rank of captain), including a wireless room, senior engineering and gunnery officers, and administrative staff to support the officers. Originally, older light or scout cruisers were often used, but in the early 1900s, the rapidly increasing speed of new destroyer designs meant that such vessels could no longer keep pace with their charges. Accordingly, large destroyer designs were produced for use as leaders. As destroyers changed from specialized anti-torpedo boat vessels that operated in squadrons to larger multi-purpose ships that operated alone or as leaders of groups of smaller vessels, and as command and control techniques improved (and the technology became more readily available), the need for specialized flotilla leaders decreased and their functions were adopted by all destroyers. The last specialized flotilla leader to be built for the Royal Navy was HMS Inglefield, launched in 1936. Subsequent leaders used the same design as the private ships of the class, with minor detailed changes to suit them to their role. In the Royal Navy, the flotilla leader and commanding officer were known as Captain (D). In the Royal Navy, flotilla leaders and divisional leaders could be identified by particular coloured bands painted on their funnels. Flotilla leader designs French Navy Jaguar-class flotilla leader Guépard-class flotilla leader Aigle-class flotilla leader Le Fantasque-class flotilla leader German Navy Type 1936A-class destroyer Imperial Japanese Navy Tenryū-class light cruiser Kuma-class light cruiser Nagara-class light cruiser Sendai-class light cruiser Agano-class light cruiser Royal Navy Swift – prototype (1907) Faulknor-class leader (1915) Marksman-class leader (1915) Parker-class leader (1916) Admiralty V-class leader Admiralty type leader (1918) Thornycroft type leader (1920) The leader of each of the "interwar standard" A- through I-classes was built to a slightly enlarged design: Codrington (1930) Keith (1931) Kempenfelt (1932) Duncan (1933) Exmouth (1934) Faulknor (1935) Grenville (1936) Hardy (1936) Inglefield (1937) Royal Italian Navy Capitani Romani-class flotilla leader Royal Netherlands Navy Tromp-class flotilla leader (Sometimes classed as a light cruiser) Royal Romanian Navy Mărăști-class flotilla leader Royal Yugoslav Navy Destroyer Dubrovnik (1931) Destroyer Split Soviet Navy Leningrad-class destroyer Tashkent-class destroyer United States Navy Porter-class destroyers Somers-class destroyers Atlanta-class