1st Aircraft Carrier Squadron - British Pacific Fleet2nd Aircraft Carrier Squadron - Home Fleet3rd Aircraft Carrier Squadron - listed in Flight, 20 April 1951, p. 483 with Home Fleet. Commanded at the time by then Rear-Admiral Caspar John.11th Aircraft Carrier Squadron - Rear Admiral Cecil Harcourt hoisted his flag in HMS Colossus in August 1945, commanding the 11th Aircraft Carrier Squadron (HMS Colossus, HMS Venerable, HMS Vengeance, and HMS Glory). This force was sent to re-occupy Hong Kong.21st Aircraft Carrier Squadron - East Indies Station30th Aircraft Carrier Squadron - Fleet Train, British Pacific Fleet, August 1945.1st Battle Squadron-1914 Grand Fleet2nd Battle Squadron-1914 Grand Fleet, 1919 Atlantic Fleet. 1932 Home Fleet3rd Battle Squadron-1914 Grand Fleet, 1919 Atlantic Fleet, 1932 Home Fleet4th Battle Squadron-1914 Grand Fleet5th Battle Squadron-1914 Grand Fleet6th Battle Squadron-1914 Grand Fleet7th Battle Squadron8th Battle Squadron9th Battle Squadron-1914 Grand Fleet1st Battlecruiser Squadron-1913 Grand Fleet.2nd Battlecruiser Squadron-1914 Mediterranean Fleet, 1915 Grand Fleet.3rd Battlecruiser Squadron-1915 Grand FleetBritish Battlecruiser Squadron-1919-1932 Atlantic Fleet-1932 Home Fleet.Starting around the time that steam cruisers became popular in the 1870s, the Royal Navy tended to organise such ships into groups called Cruiser Squadrons. Squadrons were commanded by a Rear-Admiral whose title was given as Flag Officer Cruiser Squadron n, or CSn for short (e.g. the officer commanding the 3rd Cruiser Squadron would be CS3).
During peace time the grouping was primarily for administrative purposes, but during war the whole squadron tended to be operated as a unified fighting unit and such units would train in this formation during peace. In the main fighting fleets (Home Fleet and Mediterranean Fleet) members of a given squadron were normally of the same or similar classes. The use of Cruiser Squadrons died out as the number of such ships decreased following World War II.
1st Cruiser Squadron-1939 Mediterranean Fleet, Second World War and afterwards - Mountbatten?2nd Cruiser Squadron -1914 Grand Fleet, HMS Minotaur, HMS Hampshire, HMS Shannon, and HMS Cochrane. 1932 Home Fleet in the interwar period. HMS Dorsetshire, HMS York and HMS Exeter in 1932.3rd Cruiser Squadron- Mediterranean Fleet4th Cruiser Squadron:- 1939 East Indies Station HMS Gloucester, HMS Liverpool, HMS Manchester; 1945 British Pacific Fleet HMS Swiftsure, HMS Argonaut, HMS Black Prince, HMS Euryalus, HMNZS Gambia5th Cruiser Squadron-1939 China Station HMS Cornwall HMS Dorsetshire HMS Kent HMS Birmingham. Post World War II Flag Officer Commanding was for a period an additional appointment for Flag Officer Second in Command Far East Fleet.6th Cruiser Squadron-1939 South Atlantic Station7th Cruiser Squadron-1940 Mediterranean Fleet HMS Gloucester, HMS Neptune, HMS Orion, HMAS Sydney, and HMS Liverpool. On 21 June 1940, Bardia was bombarded by the 7th Cruiser Squadron of the Mediterranean Fleet. The bombardment force consisted of the French battleship Lorraine, British cruisers HMS Orion and HMS Neptune, the Australia cruiser HMAS Sydney, and the destroyers HMS Dainty, Decoy, Hasty, and HMAS Stuart. However the bombardment is reported to have only caused minimal damage.British 8th Cruiser Squadron-1939 West Indies StationBritish 9th Cruiser SquadronBritish 10th Cruiser Squadron - First World War operated Northern Patrol checking trade routes to GermanyBritish 11th Cruiser SquadronBritish 12th Cruiser SquadronBritish 15th Cruiser Squadron 1942 Mediterranean Fleet HMS Cleopatra, Arethusa, Dido, Euryalus and Orion18th Cruiser Squadron-1939 Home Fleet. Home Fleet/Nore 1940 - War Diary March-May 19401st Light Cruiser Squadron (United Kingdom)2nd Light Cruiser Squadron (United Kingdom)3rd Light Cruiser Squadron (United Kingdom)4th Light Cruiser Squadron (United Kingdom)5th Light Cruiser Squadron (United Kingdom)6th Light Cruiser Squadron (United Kingdom)7th Light Cruiser Squadron (United Kingdom)British 1st Seaward Defence Boat Squadron1st Destroyer Squadron (United Kingdom)2nd Destroyer Squadron (United Kingdom)3rd Destroyer Squadron (United Kingdom)4th Destroyer Squadron (United Kingdom)5th Destroyer Squadron (United Kingdom) - 5th Destroyer Flotilla became 5th Destroyer Squadron in 1950-51, with HMS Solebay (D70) as leader. Portsmouth from 4.81-2.02. Included HMS Exeter, HMS Southampton (8.1981-), HMS Liverpool (5.1982-) HMS Nottingham (from 11.1982-), HMS Manchester (D95) (from 11.82-), and HMS Gloucester (from 5.1985-). Captain D5 was aboard HMS Exeter in the 1980s.6th Destroyer Squadron (United Kingdom)7th Destroyer Squadron (United Kingdom)8th Destroyer Squadron (United Kingdom)British 21st Escort SquadronBritish 22nd Escort SquadronBritish 23rd Escort SquadronBritish 24th Escort SquadronBritish 25th Escort SquadronBritish 26th Escort SquadronBritish 27th Escort SquadronBritish 28th Escort SquadronBritish 29th Escort SquadronBritish 30th Escort SquadronBritish 1st Fast Patrol Boat SquadronBritish 2nd Fast Patrol Boat SquadronBritish Fast Patrol Boat SquadronFishery Protection Squadron1st Frigate Squadron2nd Frigate Squadron3rd Frigate Squadron - postwar, was with Far East Fleet, at Singapore and Hong Kong. Flag at one point in HMS Loch Killisport. On November 21, 1960, the 3rd Frigate Squadron, together for the last time, shaped course for Singapore.4th Frigate Squadron - postwar with Far East Fleet. Made up of Amazon class frigates in the 1980s.5th Frigate Squadron6th Frigate Squadron7th Frigate Squadron8th Frigate Squadron9th Frigate Squadron17th Frigate Squadron20th Frigate Squadron - anti-submarine warfare training squadron based in Londonderry Port during the 1960s.British 100th Minesweeper SquadronBritish 101st Minesweeper SquadronBritish 105th Minesweeper SquadronBritish 106th Minesweeper SquadronBritish 108th Minesweeper SquadronBritish 120th Minesweeper Squadron Hong Kong 1951-1962British 1st Minesweeper SquadronBritish 2nd Minesweeper SquadronBritish 3rd Minesweeper SquadronBritish 4th Minesweeper SquadronBritish 5th Minesweeper SquadronBritish 6th Minesweeper SquadronBritish 50th Minesweeper SquadronBritish 51st Minesweeper SquadronBritish 52nd Minesweeper SquadronBritish 232nd Minesweeper SquadronBritish 1st Minecountermeasures SquadronBritish 2nd Minecountermeasures SquadronBritish 3rd Minecountermeasures SquadronBritish 5th Minecountermeasures SquadronBritish 6th Minecountermeasures SquadronBritish 7th Minecountermeasures SquadronBritish 8th Minecountermeasures Squadron Hong Kong 1962 - 1967British 9th Minecountermeasures SquadronBritish 10th Minecountermeasures SquadronBritish 11th Minecountermeasures Squadron1st Submarine Squadron (United Kingdom) - HMS Dolphin, Gosport.2nd Submarine Squadron (United Kingdom) - HMNB Devonport, Plymouth.3rd Submarine Squadron (United Kingdom) - HMNB Clyde, Faslane.4th Submarine Squadron (United Kingdom) - with China Station 1939. With headquarters at Singapore, the then-named Fourth Submarine Flotilla comprised Rorqual, Grampus, Regent, Rover, Parthian, Olympus, Proteus, Regulus, Rainbow, Phoenix, Perseus, Pandora Orpheus, Odin, and Otus. Trincomalee May 1944, Perth, Australia, after October 1944 supported by the depot ship HMS Adamant. Australia postwar (decision to host flotilla seems to have been made in 1949). The 4th Submarine Squadron, which included "T" class submarines, was disbanded on 10 January 1969 when the 1st Australian Submarine Squadron comprising HMAS Otway and HMAS Oxley was founded. HMS Trump departed Sydney for the United Kingdom that day.5th Submarine Squadron (United Kingdom) - Malta.6th Submarine Squadron (United Kingdom) - Nova Scotia.7th Submarine Squadron (United Kingdom) - Singapore.10th Submarine Squadron (United Kingdom) - strategic nuclear missile submarines based HMNB Clyde, Faslane.British 2nd Training SquadronBritish 3rd Training SquadronBritish 4th Training SquadronBritish Home Fleet Training SquadronFirst Flotilla, (1971-1990)Second Flotilla, (1971-1992)Third Flotilla, (1979-1992)Surface Flotilla, (1990-2002)Portsmouth Flotilla, (2002-present)Devonport Flotilla, (2002-present)Faslane Flotilla, (2010-present) See Pennant number#Flotilla bands
British 1st Destroyer Flotilla:September 1939 Mediterranean Fleet HMS Grenville (F)1st Destroyer Division HMS Gallant, HMS Glowworm, HMS Grafton, HMS Greyhound2nd Destroyer Division HMS Garland, HMS Gipsy, HMS Grenade, HMS GriffinBritish 2nd Destroyer Flotilla:1932 - 1935 Home Fleet 1935 - 1936 Red Sea, 1936 - 1937 Spanish Waters HMS Kempenfelt, HMS Comet, HMS Crusader, HMS Cygnet, HMS Crescent (All ships sold to Royal Canadian Navy from 1937 - 1939.1939 Mediterranean Fleet HMS Hardy (F)3rd Destroyer Division HMS Hasty, HMS Hostile, HMS Hereward, HMS Hero4th Destroyer Division HMS Havock, HMS Hotspur, HMS Hyperion, HMS HunterBritish 3rd Destroyer Flotilla:1939 Mediterranean Fleet HMS Inglefield' (F)5th Destroyer Division HMS Ilex, HMS Isis, HMS Imperial, HMS Imogen6th Destroyer Division HMS Ivanhoe, HMS Impulsive, HMS Intrepid, HMS Icarus1954 Home Fleet HMS St. KittsBritish 4th Destroyer Flotilla:1939 Mediterranean Fleet HMS Afridi (F)7th Destroyer Division HMS Afridi, HMS Gurkha, HMS Mohawk, HMS Sikh8th Destroyer Division HMS Cossack, HMS Maori, HMS Nubian, HMS Zulu1945 British Pacific Fleet HMAS Quickmatch, HMAS Quiberon, HMAS Queenborough, HMS Quality.1951 Home Fleet HMS AgincourtBritish 5th Destroyer Flotilla: 1932 Home Fleet1948 Home Fleet HMS St. KittsBritish 6th Destroyer Flotilla: 1932 Home Fleet; 1939 Home Fleet HMS Somali1939 11th Destroyer Division HMS Matabele, HMS Ashanti, HMS Mashona, HMS Somali(F)1939 12th Destroyer Division HMS Punjabi, HMS Tarter, HMS Bedouin, HMS EskimoBritish 7th Destroyer Flotilla: 1941 British Eastern Fleet HMAS Norman, HMAS Napier, HMAS Nestor and HMAS Nizam.British 8th Destroyer Flotilla:1939 Home Fleet; HMS Faulknor1939 15th Destroyer Division HMS Foxhound, HMS Fearless, HMS Fury, HMS Forester1939 16th Destroyer Division HMS Foresight, HMS Fortune, HMS Fame, HMS Firedrake1940 Force H HMS Faulknor, HMS Forester, HMS Foresight, HMS Firedrake, HMS Fortune, HMS Fearless, HMS Fury, HMS FoxhoundBritish 9th Destroyer Flotilla:British 10th Destroyer Flotilla:1940 Mediterranean Fleet19th Destroyer Division (Scrap Iron Flotilla) HMAS Stuart, HMAS Vampire, HMAS Voyager, HMAS Vendetta, HMAS Waterhen20th Destroyer Division HMS Dainty, HMS Diamond, HMS Decoy, HMS DefenderBritish 11th Destroyer Flotilla: 1939 Home Fleet HMS Vanquisher, HMS Vansittart, HMS Vimy, HMS Walker, HMS Warwick, HMS Whirlwind and HMS WinchelseaBritish 12th Destroyer FlotillaBritish 13th Destroyer FlotillaBritish 14th Destroyer Flotilla:1942 Mediterranean Fleet HMS Jervis, Javelin, Kelvin, Nubian, Pakenham, Paladin and PetardBritish 15th Destroyer Flotilla1939 Rosyth Command29th Destroyer Division HMS Broke, HMS Wanderer, HMS Whitehall, HMS Witch30th Destroyer Division HMS Wolverine, HMS Witherington, HMSVolunteer, HMS VerityBritish 16th Destroyer Flotilla1939 Portsmouth CommandBritish 17th Destroyer FlotillaBritish 18th Destroyer Flotilla 1939 Home Fleet HMS Kempenfelt(1939-1939 (transferred to RCN)British 19th Destroyer Flotilla:1939 Nore Command HMS Codrington (F)37th Destroyer Division HMS Basilisk, HMS Beagle, HMS Boreas 38th Destroyer Division HMS Blanche, HMS Brazen, HMS Brilliant, HMS Boadicea1940 Force H HMS Lagos, HMS Laforey, HMS Lightning, HMS Lance, HMS Lively1945 to 1946 HMS Trafalgar (flotilla leader), HMS Armada, HMS Barfleur, HMS Hogue, HMS Lagos, HMS Camperdown and HMS Finisterre.British 20th Destroyer FlotillaBritish 21st Destroyer Flotilla:1939 China Station HMS Duncan, HMS Decoy, HMS Defender, HMS Delight, HMS Duchess, HMS Dainty, HMS Daring, HMS Diamond and HMS DianaBritish 22nd Destroyer FlotillaBritish 23rd Destroyer Flotilla: formerly French small destroyers Bouclier, Branlebas, L'Incomprise, La Cordeliere, La Flore, La MelpomèneBritish 24th Destroyer FlotillaBritish 25th Destroyer Flotilla: 1945 British Pacific Fleet HMS Grenville, HMS Ulster, HMS Undine, HMS Urania, HMS Undaunted, HMS Ursa, HMS Ulysses, HMS UrchinBritish 26th Destroyer Flotilla: 1945 British Eastern Fleet HMS Saumarez, HMS Verulam, HMS Venus and HMS ViragoBritish 27th Destroyer Flotilla: 1945 British Pacific Fleet HMS Kempenfelt, HMS Wager, HMS Wakeful, HMS Wessex, HMS Whelp, HMS Whirlwind, HMS Wizard.British 28th Destroyer Flotilla:British 29th Destroyer Flotilla:British 1st Escort FlotillaBritish 2nd Escort FlotillaBritish 3rd Escort FlotillaBritish 4th Escort FlotillaBritish 5th Escort FlotillaBritish 4th Minesweeper FlotillaBritish 5th Minesweeper Flotilla1939 Nore Command: HMS Sphinx, HMS Niger, HMS Salamander, HMS Harrier, HMS Hussar, HMS Skipjack, HMS Halcyon, HMS Selkirk, HMS SpeedwellBritish 6th Minesweeper Flotilla1939 Nore Command: HMS Syringa, HMS Cypress, HMS Cedar, HMS HollyBritish 2nd MTB FlotillaBritish 10th MTB FlotillaBritish 58th MTB FlotillaBritish 1st Submarine FlotillaBritish 2nd Submarine FlotillaBritish 3rd Submarine Flotilla4th Submarine Flotilla (United Kingdom) 1939: Medway, Westcott, Grampus, Rorqual, Odin, Otus, Olympus, Parthian, Regent, Rover, Orpheus, Pandora, Perseus, Phoenix, Rainbow, Regulus, Proteus5th Submarine Flotilla (United Kingdom)7th Submarine Flotilla, part of Commander-in-Chief, South Atlantic. At Freetown, Sierra Leone, 3 September 1939, comprised HMS Clyde and HMS Severn.British 2nd Training Flotilla