The Type L submarine (L型潜水艦, L-gata Sensuikan) submarines were medium-sized submarines of the Imperial Japanese Navy (IJN), serving during the 1920s and World War II. The Type L submarines were built with Vickers naval technical guidance. All boats were built in the Mitsubishi Heavy Industries-Kobe Shipyard by the contract with Vickers.
The Type L submarines were divided into four classes:
Type L1 (L1型（呂五十一型）, Ro-go-jū-ichi-gata, Ro-51-class)
Type L2 (L2型（呂五十三型）, Ro-go-jū-san-gata, Ro-53-class)
Type L3 (L3型（呂五十七型）, Ro-go-jū-shichi-gata, Ro-57-class)
Type L4 (L4型（呂六十型）, Ro-roku-jū-gata, Ro-60-class)
Type L1 (Ro-51-class)edit
Ro-51 (as Submarine No. 25) in the 1920s
In 1916, the Mitsubishi Shipbuilding Corporation got the Vickers L class submarine informations. Mitsubishi which lost competition to the Kawasaki's Type F submarines (Fiat-Laurenti design, Ro-1 class and Ro-3 class), bought the license for the L class submarine from Vickers. The IJN hoped an improvement of submarine technologies will be achieved and ordered this submarine from Mitsubishi. Mitsubishi bought six submarine kits, and built two boats by semi-knock down. The submarine crews were satisfied with the Vickers diesels because they proved to be reliable. The IJN studied the diesel engines and made many variants of similar design, for example: Kampon Mk.24 diesel for the Ro-100 class.
Renamed Ro-59 01-11-1924. Decommissioned 20-11-1945. Scuttled at Iyo-nada, May 1946.
Type L4 (Ro-60-class)edit
Ro-64
The Type L4 is a license production model of the British L class submarine Group 3. Their performance was good. The IJN was satisfied with them and stopped the development of Kaichū type submarines for a long time. Later the IJN was not able to regain the technical delay in development of the medium-sized submarines until the end of the Pacific War.
• 6 × 450 mm (18 in) TTs (4 × bow, 2 × broadside) • 10 × Type 44 torpedoes • 1 × 76.2 mm (3.00 in)L/23.5 AA gun
• 4 × 450 mm TTs (4 × bow) • 8 × Type 44 torpedoes • 1 × 76.2 mm L/23.5 AA gun
• 4 × 533 mm (21 in) TTs (4 × bow) • 8 × 6th Year Type torpedoes • 1 × 76.2 mm L/23.5 AA gun • 1 × 6.5 mm machine gun
• 6 × 533 mm TTs (6 × bow) • 12 × 6th Year Type torpedoes • 1 × 76.2 mm (3.00 in) L/40 naval gun • 1 × 6.5 mm machine gun
Bibliographyedit
"Rekishi Gunzō"., History of Pacific War Extra, "Perfect guide, The submarines of the Imperial Japanese Forces", Gakken (Japan), March 2005, ISBN4-05-603890-2
The Maru Special, Japanese Naval Vessels No.43 Japanese Submarines III, Ushio Shobō (Japan), September 1980, Book code 68343-44
The Maru Special, Japanese Naval Vessels No.132 Japanese Submarines I "Revised edition", Ushio Shobō (Japan), February 1988, Book code 68344-36
The Maru Special, Japanese Naval Vessels No.133 Japanese Submarines II "Revised edition", Ushio Shobō (Japan), March 1988, Book code 68344-37
Referencesedit
^呂号第51潜水艦 (Ro-Gō Dai-51 Sensuikan). The same shall apply hereinafter.
May 08, 2024
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This article includes a list of general references but it lacks sufficient corresponding inline citations Please help to improve this article by introducing more precise citations February 2013 Learn how and when to remove this message The Type L submarine L型潜水艦 L gata Sensuikan submarines were medium sized submarines of the Imperial Japanese Navy IJN serving during the 1920s and World War II The Type L submarines were built with Vickers naval technical guidance All boats were built in the Mitsubishi Heavy Industries Kobe Shipyard by the contract with Vickers Class overview NameType L submarines BuildersMitsubishi Heavy Industries Kōbe Shipyard Operators Imperial Japanese Navy SubclassesType L1 Ro 51 class Type L2 Ro 53 class Type L3 Ro 57 class Type L4 Ro 60 class Built1918 1927 In commission1920 1945 Contents 1 Class variants 1 1 Type L1 Ro 51 class 1 2 Type L2 Ro 53 class 1 3 Type L3 Ro 57 class 1 4 Type L4 Ro 60 class 2 Characteristics 3 Bibliography 4 ReferencesClass variants editThe Type L submarines were divided into four classes Type L1 L1型 呂五十一型 Ro go ju ichi gata Ro 51 class Type L2 L2型 呂五十三型 Ro go ju san gata Ro 53 class Type L3 L3型 呂五十七型 Ro go ju shichi gata Ro 57 class Type L4 L4型 呂六十型 Ro roku ju gata Ro 60 class Type L1 Ro 51 class edit nbsp Ro 51 as Submarine No 25 in the 1920s In 1916 the Mitsubishi Shipbuilding Corporation got the Vickers L class submarine informations Mitsubishi which lost competition to the Kawasaki s Type F submarines Fiat Laurenti design Ro 1 class and Ro 3 class bought the license for the L class submarine from Vickers The IJN hoped an improvement of submarine technologies will be achieved and ordered this submarine from Mitsubishi Mitsubishi bought six submarine kits and built two boats by semi knock down The submarine crews were satisfied with the Vickers diesels because they proved to be reliable The IJN studied the diesel engines and made many variants of similar design for example Kampon Mk 24 diesel for the Ro 100 class Boats in class Boat Laid down Launched Completed Note fate Ro 51 1 ex Submarine No 25 10 08 1918 10 10 1919 30 06 1920 Renamed Ro 51 01 11 1924 Decommissioned 01 04 1940 Ro 52ex Submarine No 26 10 08 1918 09 03 1920 30 11 1920 Renamed Ro 52 01 11 1924 Decommissioned 01 04 1932 Type L2 Ro 53 class edit nbsp Ro 54 in the 1920s The Type L2 had minor changes from the Type L1 The changes were The ship s side torpedo tubes were removed Changed the batteries The L1 was equipped 3 groups 336 small sized batteries The L2 was equipped 2 groups 224 medium sized batteries Boats in class Boat Laid down Launched Completed Note fate Ro 53ex Submarine No 27 01 04 1919 06 07 1919 10 03 1921 Renamed Ro 53 01 11 1924 Decommissioned 01 04 1940 Ro 54ex Submarine No 28 01 11 1919 13 11 1920 10 09 1921 Renamed Ro 54 01 11 1924 Decommissioned 01 04 1940 Ro 55ex Submarine No 29 30 03 1920 10 02 1921 15 11 1921 Renamed Ro 55 01 11 1924 Decommissioned 01 04 1940 Ro 56ex Submarine No 30 10 07 1920 11 05 1921 16 01 1922 Renamed Ro 56 01 11 1924 Decommissioned 01 04 1940 Type L3 Ro 57 class edit nbsp Ro 58 in 1925 The Type L3 is a license production model of the British L class submarine Group 2 Boats in class Boat Laid down Launched Completed Results Note fate Ro 57ex Submarine No 46 20 11 1920 03 12 1921 30 07 1922 Renamed Ro 57 01 11 1924 Decommissioned 20 11 1945 Later scuttled off Kure Ro 58ex Submarine No 47 15 02 1921 02 03 1922 25 11 1922 Renamed Ro 58 01 11 1924 Decommissioned 15 09 1945 Later scuttled off Shimizu Ro 59ex Submarine No 57 18 05 1921 28 06 1922 20 03 1923 Renamed Ro 59 01 11 1924 Decommissioned 20 11 1945 Scuttled at Iyo nada May 1946 Type L4 Ro 60 class edit nbsp Ro 64 The Type L4 is a license production model of the British L class submarine Group 3 Their performance was good The IJN was satisfied with them and stopped the development of Kaichu type submarines for a long time Later the IJN was not able to regain the technical delay in development of the medium sized submarines until the end of the Pacific War Boats in class Boat Laid down Launched Completed Results Note fate Ro 60ex Submarine No 59 05 12 1921 20 12 1922 17 09 1923 Renamed Ro 60 01 11 1924 Lost in an accident at Kwajalein 29 12 1941 Ro 61ex Submarine No 72 05 06 1922 19 05 1923 09 02 1924 Damaged USS Casco 30 08 1942 Renamed Ro 61 01 11 1924 Sunk by USS Reid 31 08 1942 Ro 62ex Submarine No 73 08 09 1922 29 09 1923 24 07 1924 Renamed Ro 62 01 11 1924 Decommissioned 20 11 1945 Scuttled at Iyo nada May 1946 Ro 63ex Submarine No 84 02 04 1923 24 01 1924 20 12 1924 Renamed Ro 63 01 11 1924 Decommissioned 20 11 1945 Scuttled at Iyo nada May 1946 Ro 64ex Submarine No 79 15 10 1923 19 08 1924 30 04 1925 Renamed Ro 64 01 11 1924 Sunk by naval mine at Hiroshima Bay 12 04 1945 Ro 65 15 11 1924 19 09 1925 30 06 1926 Lost in an accident at Kiska 04 11 1942 Ro 66 01 12 1925 25 10 1926 28 07 1927 Collided with Ro 62 and sunk southwest of Wake Island 17 12 1941 Ro 67 05 03 1925 18 03 1926 15 12 1926 Decommissioned 20 07 1945 Scuttled off Sasebo July 1948 Ro 68 06 02 1924 23 02 1925 29 10 1925 Decommissioned 30 11 1945 Scuttled off Maizuru 30 04 1946 Characteristics editType L1 Ro 51 L2 Ro 53 L3 Ro 57 L4 Ro 60 Displacement Surfaced 893 long tons 907 t 893 long tons 907 t 889 long tons 903 t 988 long tons 1 004 t Submerged 1 075 2 long tons 1 092 t 1 075 3 long tons 1 093 t 1 102 7 long tons 1 120 t 1 301 long tons 1 322 t Length overall 70 59 m 231 ft 7 in 70 59 m 231 ft 7 in 72 89 m 239 ft 2 in 78 39 m 257 ft 2 in Beam 7 16 m 23 ft 6 in 7 16 m 23 ft 6 in 7 16 m 23 ft 6 in 7 41 m 24 ft 4 in Draft 3 90 m 12 ft 10 in 3 94 m 12 ft 11 in 3 96 m 13 ft 0 in 3 96 m 13 ft 0 in Power plant and shaft 2 Vickers diesels 2 shafts 2 Vickers diesels 2 shafts 2 Vickers diesels 2 shafts 2 Vickers diesels 2 shafts Power Surfaced 2 400 bhp 2 400 bhp 2 400 bhp 2 400 bhp Submerged 1 600 shp 1 600 shp 1 600 shp 1 600 shp Speed Surfaced 17 knots 31 km h 17 3 knots 32 0 km h 17 1 knots 31 7 km h 15 7 knots 29 1 km h Submerged 10 2 knots 18 9 km h 10 4 knots 19 3 km h 9 1 knots 16 9 km h 8 6 knots 15 9 km h Range Surfaced 5 500 nmi 10 200 km at 10 knots 19 km h 5 500 nmi 10 200 km at 10 knots 19 km h 5 500 nmi 10 200 km at 10 knots 19 km h 5 500 nmi 10 200 km at 10 knots 19 km h Submerged 80 nmi 150 km at 4 knots 7 4 km h 80 nmi 150 km at 4 knots 7 4 km h 80 nmi 150 km at 4 knots 7 4 km h 80 nmi 150 km at 4 knots 7 4 km h Test depth 60 m 200 ft 60 m 200 ft 60 m 200 ft 60 m 200 ft Fuel 75 tons 75 tons 75 tons 75 tons Complement 45 45 46 48 Armament initial 6 450 mm 18 in TTs 4 bow 2 broadside 10 Type 44 torpedoes 1 76 2 mm 3 00 in L 23 5 AA gun 4 450 mm TTs 4 bow 8 Type 44 torpedoes 1 76 2 mm L 23 5 AA gun 4 533 mm 21 in TTs 4 bow 8 6th Year Type torpedoes 1 76 2 mm L 23 5 AA gun 1 6 5 mm machine gun 6 533 mm TTs 6 bow 12 6th Year Type torpedoes 1 76 2 mm 3 00 in L 40 naval gun 1 6 5 mm machine gunBibliography edit Rekishi Gunzō History of Pacific War Extra Perfect guide The submarines of the Imperial Japanese Forces Gakken Japan March 2005 ISBN 4 05 603890 2 The Maru Special Japanese Naval Vessels No 43 Japanese Submarines III Ushio Shobō Japan September 1980 Book code 68343 44 The Maru Special Japanese Naval Vessels No 132 Japanese Submarines I Revised edition Ushio Shobō Japan February 1988 Book code 68344 36 The Maru Special Japanese Naval Vessels No 133 Japanese Submarines II Revised edition Ushio Shobō Japan March 1988 Book code 68344 37References edit 呂号第51潜水艦 Ro Gō Dai 51 Sensuikan The same shall apply hereinafter Retrieved from https en wikipedia org w index php title Japanese Type L submarine amp oldid 1219580875, wikipedia, wiki, book, books, library,
