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* [[Ghadir (submarine)|Ghadir]]
* [[Ghadir (submarine)|Ghadir]]
* [[Nahang class|Nahang]]
* [[Nahang class|Nahang]]
* [[khomaini class|khomaini]]


=== Italy ===
=== Italy ===

Revision as of 09:11, 29 December 2023

Some 80 Japanese Type D ("Koryu") Midget Submarines in a dry dock at Kure, 19 October 1945

A midget submarine is any submarine under 150 tons,[1] typically operated by a crew of one or two but sometimes up to six or nine, with little or no on-board living accommodation. They normally work with mother ships, from which they are launched and recovered and which provide living accommodation for the crew and support staff.

Both military and civilian midget submarines have been built. Military types work with surface ships and other submarines as mother ships. Civilian and non-combatant military types are generally called submersibles and normally work with surface ships. Most early submarines would now be considered midget submarines, such as the United States Navy's USS Holland (SS-1) and the British Royal Navy's HMS Holland 1 (both named for the same designer).

Military submarines

Uses

Crew of a British X-class midget submarine, part of the British Pacific Submarine Fleet

Midget submarines are best known for harbor penetration, although only two World War II boats, the British X-craft and the unsuccessful Welman submarine, were specifically designed with this in mind. Japan's Ko-hyoteki-class submarines were originally designed to take part in decisive fleet actions. However, as circumstances changed, they were given the task of harbor penetration. Germany's various World War II designs were mostly designed to attack Allied shipping off landing beaches and harbors, although the Seehund had a great enough range to attack shipping off the Thames estuary.

Midget submarines have also seen some use in support roles. X-craft were used for reconnaissance, and the Seehund was used to carry supplies. A number of modern midget submarines have also been built for submarine rescue.

Armament

Midget submarines are commonly armed with torpedoes and mines in the form of, for example, detachable side loads and nose sections. Alternatively they may function as swimmer delivery vehicles to deliver frogmen to the vicinity of their targets, which are then attacked with limpet mines.

Civilian

In civilian use, midget submarines are generally called submersibles; commercial submersibles are used in, for example, underwater maintenance, exploration, archaeology, and scientific research. Other commercially available submersibles are marketed as novelty tourist attractions and as specialised tenders for wealthy yacht owners. Also, a growing number of amateur submariners homebuild submersibles as a hobby.[2][3]

Types by nation

Belgium

  • FNRS-2 pioneering research submersible

Colombia

  • S.X.506 a 70-ton 5-man crew midget submarine designed by Italian shipbuilder Cosmos as a development of earlier S.X.404 by the same firm. Displacement is 58/70 t (surfaced/submerged), length is 23 m, beam is 2 m, draft is 4 m, and speed is 8.5/7 kn (surfaced/submerged). At a speed of 7 kn, range is 1200/60 nmi (surfaced/submerged). Payload includes externally attached torpedoes and swimmer delivery vehicles, and up to 8 divers can be carried in addition to the 5-man crew.[4]

Finland

  • MIR for research and submarine rescue

France

  • FNRS-4 second generation research submersible
  • Nautile research submersible to depth of 6 kilometers
  • SP-350 Denise diving saucer

France also acquired a number of German midget submarines at the end of WW2.

Germany

German midget submarine Seehund, with a torpedo

Most German midget submarines were developed late in World War II in an attempt to stop the Allied invasion of Europe and used later to disrupt its supply lines. As a result, the submarines mostly engaged in open water attacks rather than harbour penetration.[5][6]

  • Biber (324 built by AG Weser of Bremen)[5][7]
  • Delphin (2 built) 2-man 5-ton torpedo with top speed of 20 knots (37 km/h) and submerged radius of 30 nautical miles (56 km) at 3 knots (5.6 km/h).[5][7]
  • Hai (midget submarine) prototype of improved Marder.[5][7]
  • Hecht type XXVIIA 2-man 12 ton submarine with 1 mine or 1 torpedo carried outboard to a range of 38 miles at 4 knots.[8]
  • Marder (~300 built) similar to Neger with breathing apparatus to allow submerged operation.[5][7]
  • Molch Completely electric motor driven WWII (1944–1945) Midget submarine. Total 393 built.[5]
  • Schwertwal (Grampus) Designed as super-fast Walter-type midget boat, but the prototype was not complete when scuttled in May 1945.[5]
  • Neger (~200 built) 1-man 5-ton torpedo with underslung G7E torpedo. Top speed 20 knots and range of 30 miles at 3 knots.[5][7]
  • Seehund type XXVIIB[9] Most successful midget submarine in the Kriegsmarine. Operational deployment was between January 1945 – April 1945.[5]
  • V.80 4-man 76-ton prototype completed in 1940 to test Walther geared turbine propulsion system. Range was 50 nautical miles (93 km) at 28 knots (52 km/h).[10]
  • Orca class post-war midget submarine: 13.27 meter x 2.1 meter 5 men midget submarine with maximum depth of 100, maximum underwater speed of 5 kn, maximum range of 150 nmi, maximum endurance of 4 days, and maximum payload of 250 kg. Periscopes includes television camera, HF/HF communication and GPS antenna. There is also an underwater television camera and obstacle avoidance sonar with an effective range of 200 m. The low acoustic and magnetic signature midget sub displaces 28 t, powered by two computerized permanent magnetic electric motors that drive a single shaft low-cavitation and low noise propeller, which is controlled by fly-by-wire control system that is usually adopted for aircraft. The pressure hull is a modular design consisted of four modules that enables easy transportation and maintenance.[11]

India

The Indian Navy is planning to acquire two midget submarines at an estimated cost of ₹2000 Crores for use as swimmer delivery vehicles.[12] These submarines will be used for conducting underwater special operations by MARCOS.[13] Both submarines will be constructed by Hindustan Shipyard Limited.[12]

Indonesia

The Indonesian Navy has shown[when?] some interest in having a new Midget-class submarine, built by local shipyards, for coastal rather than open water patrol. The submarine was designed a number of years ago by a retired Indonesian Navy submariner officer, Colonel (Ret) Ir. R. Dradjat Budiyanto, Msc. The midget experiment project involves the construction of a submarine, designated MIDGET IM X −1, which will weigh about 150 – 250 tonnes, with a tubular frame design 24 – 30 meters long, and four torpedo tubes. The submarines will have minimum of 8 – 10 crew members including officers. They will have a 40 km range non-hull-penetrating optronic mast as the attack periscope, and a 20 km range navigation periscope.[citation needed]

Indonesian defence minister Purnomo Yusgiantoro has backed the project. Construction should commence at the Indonesian PT.PAL INDONESIA shipyard by late 2011, and will take about three or four years to complete.

Iran

Italy

An Italian CB-class submarine in the Nikola Tesla Technical Museum in Zagreb, Croatia
  • Siluro a Lenta Corsa (SLC), also known as Maiale (pig), a low speed human torpedo. On 3 December 1941, Sciré departed La Spezia carrying three Maiale to conduct what became the Raid on Alexandria (1941). At the island of Leros in the Aegean Sea, six Decima Flottiglia MAS crewmen came aboard, including Lieutenant Luigi Durand de la Penne. On December 18 Sciré released the manned torpedoes 1.3 miles from Alexandria commercial harbor, and they entered the harbor when the British opened the boom defence to let three of their destroyers pass. After many difficulties, de la Penne and his crewmate Emilio Bianchi successfully attached a limpet mine under HMS Valiant, but had to surface as they attempted to leave and were captured. They refused to answer when questioned and were detained in a compartment aboard Valiant. Fifteen minutes before the explosion, de la Penne asked to speak to the Valiant's captain and informed him of the imminent explosion but refused to give other information. He was returned to the compartment and neither he or Bianchi were injured by the detonation of the mine. The other four torpedo-riders were also captured, but their mines sank Valiant, the battleship Queen Elizabeth, the Norwegian tanker Sagona and badly damaged the destroyer HMS Jervis. The two battleships sank in only a few feet of water and were subsequently re-floated. Nevertheless, they were out of action for over a year.
  • Bathyscaphe Trieste was first to explore the Challenger Deep of the Mariana Trench
  • CA type First series was a 2-man midget submarine the second series carried a crew of three.[14]
  • CB type 45 ton 4 man design first introduced in 1941[14]
  • CE2F/X100 post-war torpedo chariot
  • MG 120: MG 120 Shallow water attack submarine (SWATS) is a development of MG 110 in Pakistani service with the displacement is increased to 130 t submerged, range is 1600 nmi @ 7 kn surfaced, 60 nmi @ 4.5 kn submerged, and the number of divers carried is drastically increased to 15.[15]
  • MG 130: MG 130 is a development of MG 120 with AIP module called UAPE (Underwater Auxiliary Propulsion Engine) based on a closed circuit diesel fueled by liquid oxygen, which provides an underwater range of 400 nmi (740 km).[15]

Japan

Japanese Type A Midget Submarine recovered in 1960 off Pearl Harbor, Hawaii
DSV Shinkai
  • Type B Kō-hyōteki-class Midget Ha 45 prototype built 1942 to test Type A improvements.[18]
  • Type C Kō-hyōteki-class Midget Ha 62–76 similar to Type A with crew of 3 and range increased to 350 nautical miles (650 km) at 6 knots (11 km/h) surfaced or 120 nautical miles (220 km) at 4 knots (7.4 km/h) submerged.[18]
  • Type D Kō-hyōteki-class, also called Kōryū class (115 completed) improved Type C with crew of 5 and range increased to 1,000 miles (1,600 km) at 8 knots (15 km/h) surfaced and 320 miles (510 km) at 16 knots (30 km/h) submerged.[19]
  • Kairyū-class submarine
  • Kaiten submarine suicide torpedo.
  • DSV Shinkai research submersible, capable of diving to a depth of 6.5 kilometres (4.0 miles)

North Korea

South Korea

  • S.X.756: Developed by Italian shipbuilder Cosmos as a successor of earlier S.X.506 midget submarine in Colombian service. Length is increased to 25.2 m and beam is increased to 2.1 m in comparison to its predecessor S.X.506, and displacement is increased to 73/80 t (surfaced/submerged). Crew is increased by one to a total of 6, but the total number of divers carried remained the same at 8. Range is 1600 nmi @ 6 kn surfaced, and 60 nmi @ 4 kn submerged, and payload remains the same.[4]
  • Dolgorae class midget sub

Pakistan

  • MG 110 class midget submarine: Developed by Italian shipbuilder Cosmos as a successor of earlier S.X.756 midget submarine in South Korean service. MG 110 is a slightly enlarged version of S.X.756 with length increased to 27.28 m, diameter increased to 2.3 m, and displacement increased to 102/110 t (surfaced/submerged). Range is 1200 nmi surfaced, and the submerged range remain the same. Payload and crew are also identical to that of its predecessor S.X.756 midget submarine.[4]

China

Poland

Taiwan

  • 2 Italian Cos.Mo.S CE2F/X100 post-war torpedo chariots
  • 2 Italian Cos.Mo.S S.X.404 midget submarines: S-1 Haijiao (海蛟), S-2 Hailong (海龍), in service from October 8, 1969, to November 1, 1973. S.X.404 is a 70-ton 4-man crew submarine design by Cosmos. Four were sold to Colombia and two to Taiwan in the 1970s.[20] Displaced is 40/70 t (surfaced/submerged), speed is 11/6.5 kn (surfaced/submerged), range is 1200/60 nmi (surfaced/submerged) @ respective maximum speed. Payload included externally attached torpedoes or mines, or swimmer delivery vehicles.[4]

Romania

  • CB class, during World War II, Romania owned five midget submarines.[21]

Russia

  • In the late 19th century Russia built a class of treadle powered submarines 4.5 meters in length designed by Stefan Drzewiecki they were withdrawn from service in 1886.[22]
  • APL and Pygmy projects – two boats were constructed in 1935-1936, tested, but later abandoned [23]
  • Losos class submarine

Spain

Foca I (SA-41) and Foca II (SA-42) at Cartagena
  • Foca class submarine (design begun in 1957, entering service in 1962): A total of 2 units built, SA 41 & SA 42. Displacement is 16/20 t (surfaced/submerged), with a crew of 3, and armed with two 21 in torpedo tubes. Stricken in 1971.[24] Not to be confused with World War II era Italian Foca-class submarine.
  • Tiburón class submarine (design begun in 1958, entering service in 1964): A total of 2 units built, SA 51 & SA 52. Displacement is 78/81 t (surfaced/submerged), with a crew of 5, and armed with two 21 in torpedo tubes. Stricken in 1971.[24]

Sweden

  • Spiggen II class midget submarine: 6 man crew midget sub displaces 14 t when submerged, with 5 kn speed and endurance of 2 weeks. Length: 11 m, beam: 1.4 m, height: 1.7 m.[11]
  • Sea Dagger midget submarine developed by Kockums: a midget submarine of modular design with length of 16 – 20 m depending on various configurations totaling 4, including training, reconnaissance, diver delivery and small attack versions. All versions are consisted of 3 modules, two of which are identical for all versions, the bow and stern modules. The midsection has 4 modules to choose from, each for a specific mission. All versions lack the sail.[25]
  • UVS-1300 Malen Originally built for navy purposes as sonar target. Midget submarine: 4 man crew midget sub displaces 11 t when submerged, with 5 kn speed and endurance of at least 1 week depending on fuel carried. Length: 10 m, beam: 1.4 m, height: 1.7 m.[26]

Turkey

The Turkish navy has evaluated two midget submarine designs from German firm ThyssenKrupp Marine Systems, Type 200 and Type 300 classes:

  • Type 200: Displacement: 200 t surfaced, length: 25 m, beam: 4.2 m, draft 3.1 m, speed: 8 kn surfaced, range: 2100 nmi @ 8 kn surfaced, endurance: 2 weeks, armament: 2 21-in torpedo tubes with a maximum of 4 torpedoes, crew: 6 + 12 divers.[27]
  • Type 300: Displacement: 300 t surfaced, length: 30 m, beam: 4.2 m, draft 3.1 m, speed: 12 kn surfaced, range: 3100 nmi @ 8 kn surfaced, endurance: 2 weeks, armament: 2 21-in torpedo tubes with a maximum of 6 torpedoes, crew: 12.[27]

United Kingdom

X24 a British X class submarine on display at the Royal Navy Submarine Museum

The Royal Navy has used a number of midget submarines. Most were developed during the Second World War. The decommissioning of the Stickleback class 1958–early 1960s marked the end of midget submarines designed for combat in the Royal Navy.

  • Sleeping Beauty Motorized Submersible Canoe (MSC): developed by Special Operations Executive Station IX during the Second World War.
  • Chariot manned torpedo: the British developed two types of manned torpedoes; the Chariot Mark I, of 1.6 ton, and the Chariot Mark II, of 2.3 ton. Sixty-four units were built.[28]
  • Stickleback class: a post Second World War development of the XE class.
  • X class: used to attack German warships in the north of Norway. One notable target of a successful attack was the battleship Tirpitz. The submarines had a crew of three (plus a diver) and carried two large mines containing Amatol – one on each side. Their strategy was to lay mines on the sea bottom beneath the target, set a time fuse, and leave.
  • XE class: used in the Far East against Japan, where they carried out a number of attacks and special missions.
  • Welman submarine: a single-person submersible widely considered a failure.[29]
  • Welfreighter: a Station IX-developed special operations submersible with two crew and up to four passengers, designed to resemble a motorboat when surfaced. Over 100 were produced, beginning in September 1944; the extent of operational use is unclear.[30][31]

United States

The US X-1 at sea

Former Yugoslavia

  • Una-class midget submarine. After the Yugoslav Wars, both Croatia and FR Yugoslavia held examples. Length: 18 m, beam: 3.7 m, diameter: 2.5 m, displacement: 76 t surfaced, 90 t submerged, crew: 4 + 6 divers. Surfaced and submerged speed is 4 kn for both, and the range is 200 nmi surfaced, 50 nmi submerged both @ 4 kn. M-100 lacks sail and its battery can only be charged when surfaced. Up to 4 R-1 swimmer delivery vehicle (SDV)s or two light (400 mm) torpedoes can be carried.[4]
  • Type M-100D class midget submarine. Development of Type M-100 Una class. Displacement is increased to around 88/100 t (surfaced/submerged), and the length is increased to approximately 21 m, beam is increased to 4.42 m, and diameter to 2.7 m. Speed is increased to 8/11 kn (surfaced/submerged), and range is increased to 550 nmi surfaced @ 10 kn when surfaced, and that of submerged remains the same as its predecessor M-100 Una class while the payload and crew also remain unchanged. A sail is added, and its battery can be charged while submerged.[4]

See also

References

  1. ^ "Is the U.S. Prepared to Face Midget Subs?". 24 May 2010.
  2. ^ "Personal Submersibles project page". www.psubs.org. Retrieved 13 August 2017.
  3. ^ "More Euro-Subs ..." www.euronaut.org. Archived from the original on 13 August 2017. Retrieved 13 August 2017.
  4. ^ a b c d e f Wertheim, Eric (2007). naval institute guide to combat fleets of the world 15th edition. Naval Institute Press. ISBN 9781591149552. Retrieved 18 June 2013.
  5. ^ a b c d e f g h i Helgason, Guðmundur. "Midget submarines - U-boat Types - German U-boats of WWII - Kriegsmarine". uboat.net. Retrieved 4 May 2019.
  6. ^ "German Midget submarine operations - U-boat Operations - uboat.net". uboat.net.
  7. ^ a b c d e Lenton, H.T. GERMAN WARSHIPS of the Second World War Arco Publishing (1976) pp. 285–286
  8. ^ Taylor, J.C. German Warships of World War II Doubleday & Company (1967) p. 109
  9. ^ Taylor, J.C. German Warships of World War II Doubleday & Company (1967) p.110
  10. ^ Lenton, H.T. GERMAN WARSHIPS of the Second World War Arco Publishing (1976) p.212
  11. ^ a b Watts, Anthony J (2001). "Submarines". Jane's Underwater Warfare Systems, 2001-02 edition. IHS Inc (formally Jane's Information Group Inc). ISBN 978-0710623331.
  12. ^ a b Datta, Sujan (26 October 2014). "'Midgets' on navy mind". The Telegraph. New Delhi. Archived from the original on April 24, 2015. Retrieved 4 May 2019.
  13. ^ "6 Made-in-India Submarines for Navy for 53,000 Crores".
  14. ^ a b Kemp, Paul (1996). Underwater Warriors. Arms & Armour Press. pp. 55–57. ISBN 1-85409-228-6.
  15. ^ a b "By sea & stealth: maritime special forces tend to arrive in hostile territory by sea and by stealth, but where once they would be delivered by rubber dinghies from a submarine now they are using Special Delivery Vehicles (SDV) and even midget submarines". Retrieved December 1, 2005.
  16. ^ Hearst Magazines (May 1942). "Jap Sub Had Guard to Cut Net in Harbor". Popular Mechanics. Hearst Magazines. pp. 71–. ISSN 0032-4558. Retrieved 2 October 2011. {{cite book}}: |journal= ignored (help)
  17. ^ "NOAA's Hawaii Undersea Research Laboratory (HURL)". Retrieved 11 November 2014.
  18. ^ a b Watts, Anthony J. Japanese Warships of World War II Doubleday & Company (1967) p.213
  19. ^ Watts, Anthony J. Japanese Warships of World War II Doubleday & Company (1967) p.216
  20. ^ Kemp, Paul (1996). Underwater Warriors. Arms & Armour Press. pp. 225–228. ISBN 1-85409-228-6.
  21. ^ Robert Gardiner, Conway's All the World's Fighting Ships 1922-1946, Naval Institute Press, 1980, pp. 311 and 361
  22. ^ Preston, Antony (2001). The Royal Navy Submarine Service A Centennial History. Conway Maritime Press. p. 19. ISBN 0-85177-891-7.
  23. ^ "Project APL. Deepstorm.ru". Retrieved 11 November 2014.
  24. ^ a b "Spanish Foca & Tiburón midget subs". Retrieved 24 June 2013.
  25. ^ "Sea Dagger midget sub". Retrieved 11 November 2014.
  26. ^ "UVS-1300 Malen". Retrieved 12 December 2014.
  27. ^ a b Funnell, Clifford (2009). "Submarines". Jane's Underwater Warfare Systems, 2009-10 edition. IHS Inc (formally Jane's Information Group Inc. ISBN 978-0710629029.
  28. ^ Hobson, Robert (2004). Chariots of War. Ulric Publishing, pp. 61 & 62. ISBN 0-9541997-1-5
  29. ^ Kemp, Paul (1996). Underwater Warriors. Arms & Armour Press. p. 158. ISBN 1-85409-228-6.
  30. ^ Preston, Antony (2001). The Royal Navy Submarine Service: A Centennial History. Conway Maritime Press. p. 129. ISBN 0-85177-891-7.
  31. ^ Colville, Tom. "Welfreighter". Archived from the original on 2005-09-22. Retrieved 2008-06-29.
  32. ^ Cole, William (25 July 2009). "Prototype mini-sub shelved". DMZ Hawai'i. Archived from the original on 6 September 2018. Retrieved 5 September 2018 – via Honolulu Star Advertiser.
  33. ^ Kaharl, Victoria A. (1 October 1990). Water Baby: The Story of Alvin. Oxford University Press, USA. ISBN 0-19-506191-8.
  34. ^ McCullough, George. "GIMIK OSS Project "FEU" in World War II" (PDF).
  35. ^ Anderson, Jim; Smith, Dirk (December 2014). "GIMIK and SKIFF A tale of two semi-submersibles" (PDF). Studies in Intelligence. 58 (4): 19–29 – via Central Intelligence Agency.
  36. ^ "Gimik | Battleship Cove". Battleship Cove. Retrieved 2023-10-14.
  37. ^ Pike, John (7 July 2011). "Deep Submergence Rescue Vehicle DSRV". GlobalSecurity.org. Retrieved 4 May 2019.
  38. ^ Ryan, Mary (2011). "Rescuing Submariners: From DSRVs to the SRDRS" (PDF). Undersea Quarterly. 15 (2). Naval Undersea Museum Foundation: 1–6. Archived from the original (PDF) on 2014-03-25.
  39. ^ McRaven, William (March 14, 2015). Hearing on National Defense Authorization Act for Fiscal Year 2015 and Oversight of Previously Authorized Programs before the Committee on Armed Services, House of Representatives, One Hundred Thirteenth Congress, Second Session (PDF). Subcommittee on Intelligence, Emerging Threats and Capabilities Hearing on Fiscal Year 2015 National Defense Authorization Budget Request from the U.S. Special Operations Command and Posture of the U.S. Special Operations Forces. Washington, D.C.: Government Printing Office. Retrieved January 23, 2019.
  40. ^ "Navy Tests First Midget Submarine As Close In Weapon". Popular Mechanics, February 1956, p. 124, bottom of page.
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