British L-class submarine

Class overview
L52, L22, L20 & L6, at Gosport in 1933
Operators:	Royal Navy Soviet Navy
Preceded by:	E class
Succeeded by:	Odin class
In commission:	1917 - 1942
Planned:	73
Completed:	27
General characteristics
Type:	Submarine
Displacement:	Group 1 & 2 : 890 long tons (904 t) surfaced 1,074 long tons (1,091 t) submerged Group 3 : 960 long tons (975 t) surfaced 1,150 long tons (1,168 t) submerged^[1]
Length:	Group 1 : 222 ft (67.7 m) Group 2 : 228 ft (69.5 m) Group 3 : 230 ft 6 in (70.3 m)
Beam:	23 ft 6 in (7.16 m)
Speed:	Surfaced Group 1 : 17.3 knots (32.0 km/h; 19.9 mph) Group 2 : 17 knots (31 km/h; 20 mph) Group 3 : 17.5 knots (32.4 km/h; 20.1 mph) Submerged 10.5 knots (19.4 km/h; 12.1 mph)
Range:	Group 1 & 2 : 2,800 nmi (5,200 km) at 10 kn (19 km/h; 12 mph) surfaced Group 3 : 4,800 nmi (8,900 km) at 8 kn (15 km/h; 9.2 mph) surfaced^[1]
Complement:	Group 1 : 35 Group 2 : 38 Group 3 : 44
Armament:	Group 1 : 6 × 18-inch (450 mm) torpedo tubes (4 bow, 2 beam) 10 × 18-inch torpedoes 1 × 4-inch gun Group 2 : 4 × 21-inch (533 mm) bow torpedo tubes 2 × 18-inch (450 mm) beam torpedo tubes 8 × 21-inch and 2 × 18-inch torpedoes 1 × 4-inch gun or 4 × 21-inch (533 mm) torpedo tubes (bow) 16 × mines 1 × 4-inch gun Group 3 : 6 × 21-inch (533 mm) torpedo tubes (bow) 12 × 21-inch (533 mm) torpedoes 2 × 4-inch (102 mm) guns^[1]

The British L-class submarine was originally planned under the emergency war programme as an improved version of the British E-class submarine. The scale of change allowed the L class to become a separate class.

The armament was increased when the 21-inch torpedoes came into service. The Group 3 boats had two QF 4-inch guns fore and aft of the lengthened conning tower. Also, 76 tons of fuel oil was carried in external wing tanks for the first time in British submarines. Several of the Group 1 boats were configured as minelayers including L11 and L12. In the Group 2 boats, L14, L17 and L24 to L27 were built as minelayers carrying 16 mines but without the two beam torpedo tubes.

The introduction of the L class came too late to contribute significantly in World War I. L2 was accidentally depth-charged by three American destroyers in early 1918. L12 torpedoed the German submarine UB-90. L10 torpedoed the German destroyer S33 in October 1918 but was sunk by accompanying destroyers.

L55 was sunk in 1919 during the British naval intervention in the Russian civil war by Bolshevik Russian destroyers. She was salvaged by the Russians and was re-commissioned by the Russians with her original service number.

The L class served throughout the 1920s and the majority were scrapped in the 1930s but three remained operational as training boats during World War II. The last three were scrapped in 1946 after long distinguished service.

Parts of uncompleted L-class submarines were used for the Yugoslav Hrabri-class submarines.

Group 1 (L1-class)

Group 2 (L9-class)

HMS L22
HMS L23
HMS L24
HMS L25
HMS L26
HMS L27
L28 to L32 were broken-up after commencement
HMS L33
L34 and L35 were cancelled
L36 to L49 were not ordered
L50 and L51 were cancelled

Group 3 (L50-class)

L57 to L68 were cancelled
HMS L69
L70 was cancelled
HMS L71
L72 to L74 were cancelled

References

1 2 3 "L Class Submarines". battleships-cruisers.co.uk. Retrieved 12 May 2010.

Submarines, War Beneath The Waves, From 1776 To The Present Day, by Robert Hutchinson
Colledge, J. J.; Warlow, Ben (2006) [1969]. Ships of the Royal Navy: The Complete Record of all Fighting Ships of the Royal Navy (Rev. ed.). London: Chatham Publishing. ISBN 978-1-86176-281-8. OCLC 67375475.

External links

Wikimedia Commons has media related to British L class submarines.

British L-class submarine

L1 class	L1 L2 L3 L4 L5 L6 L7 L8

L9 class	L9 L10 L11 L12 L14 L15 L16 L17 L18 L19 L20 L21 L22 L23 L24 L25 L26 L27 L33

L50 class	L52 L53 L54 L55 L56 L69 L71

Only submarines that were completed are listed. List of submarines of the Royal Navy List of submarine classes of the Royal Navy

British naval ship classes of the First World War

Aircraft/Seaplane carriers	Empress^S^V Riviera^S^V Engadine^S^V Ark Royal^S Ben-my-Chree^S^V Campania^S^V Raven II^S^V Anne^S^V Vindex^S^V Manxman^S^V Furious^M Pegasus^S^V Nairana^S^V Argus^S^V Vindictive^S^V

Dreadnought battleships	Dreadnought^S Bellerophon St Vincent Neptune^S Colossus Orion King George V Erin^S Agincourt^S Iron Duke Canada^S Queen Elizabeth Revenge

Pre-dreadnought battleships	Royal Sovereign Majestic Canopus Formidable Duncan King Edward VII Swiftsure Lord Nelson

Battlecruisers	Invincible Indefatigable Lion Queen Mary^S Tiger^S Renown Courageous Admiral^S^C Incomparable^X

Armoured cruisers	Cressy Drake Monmouth Devonshire Duke of Edinburgh Warrior Minotaur

Heavy cruisers	Hawkins

Light cruisers	Town^G Arethusa C^{G, C} Danae^C Emerald^A

Protected cruisers	Apollo Astraea Eclipse Blake Pearl Edgar Powerful Diadem Arrogant Pelorus Highflyer Challenger Topaze

Scout cruisers	Adventure Forward Pathfinder Sentinel Boadicea Blonde Active

Destroyer flotilla leaders	Swift^S Faulknor Marksman Parker Admiralty (or Scott)^C Thornycroft (or Shakespeare)^C

Destroyers	A^G B^G C^G D^G E^G F Cricket^G G H I K L Admiralty M Hawthorn M Thornycroft M Yarrow M Yarrow Later M R^G S^{G, C} Talisman V and W^{G, C}

Monitors	Marshal Ney Abercrombie Lord Clive Humber Gorgon M15 M29 Erebus

Minesweepers	Flower Racecourse Hunt 24^C

Gunboats	Fly Insect

Submarines	A B C D E F G H^C J K L^C M^C R^C Swordfish^S V

A All completed after the war C One or more completed after the war G Grouping of several classes M converted from Courageous class S Single ship of class V Conversions X Cancelled

British naval ship classes of the Second World War

Aircraft carriers	Courageous Argus Hermes Eagle Ark Royal Illustrious Unicorn Implacable Colossus Majestic^C Audacious^C Malta^X Centaur^C

Escort carriers	Archer^AV Audacity^V Avenger^AV Attacker^A Ruler^A Activity^V Pretoria Castle^V Nairana^V

Battleships	Queen Elizabeth Revenge Nelson King George V Lion^X Vanguard^C

Battlecruisers	Renown Hood

Heavy cruisers	Hawkins County York

Light cruisers	C Danae Emerald Leander Arethusa Town Dido Crown Colony Minotaur

Minelayers	Adventure Abdiel Plover Linnet Agamemnon^V Menestheus^V Port Napier^V Port Quebec^V Southern Prince^V Teviot Bank^V

Destroyer leaders	Shakespeare Scott

Destroyers	R S V & W Town^A Ambuscade Amazon A & B C & D E & F G & H I Tribal J, K & N Hunt L & M O & P Q & R S & T U & V W & Z C Battle Weapon^C G^X Daring^C,P

Frigates	River Captain^A Colony^A Loch Bay

Corvettes	Flower Castle

Sloops	24 Bridgewater Hastings Banff^A Shoreham Grimsby Kingfisher Bittern Egret Black Swan

Minesweepers	Hunt Halcyon Bangor Auk^A Algerine Cybele

Submarines	H L Odin Parthian Rainbow S River Grampus T U P611 V Amphion X XE

Coastal	Harbour Defence Motor Launch Fairmile B motor launch Motor Torpedo Boat Motor Gun Boat Steam Gun Boat

Other	Trawlers Isles Portuguese Tree Monitors Erebus Roberts Seaplane carriers Pegasus Albatross Merchant aircraft carriers Fighter catapult ships Armed merchant cruisers Ocean boarding vessels

A American built X Cancelled C Completed after the war C,P Laid down and completed after the war V Conversions

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