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Japanese submarine Yu 1007

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An unidentified Yu I-type submarine of the Yu 1001 subclass in Tateyama Bay on the coast of Japan in 1945.
History
Japan
NameYu 1007
BuilderJapan Steel Works, Hiroshima, Japan
Fate
  • Surrendered August 1945
  • Sank in storm 1945 or 1946
  • Salvaged
  • Scrapped January 1948
General characteristics Yu I type
TypeTransport submarine
Displacement
  • 274 long tons (278 t) surfaced
  • 346 long tons (352 t) submerged
Length41.40 m (135 ft 10 in) overall
Beam3.90 m (12 ft 10 in)
Draft3.00 m (9 ft 10 in)
Propulsion
  • 2 × Hesselman engines
  • 298 kW (400 bhp) surfaced
  • 56 kW (75 shp) submerged
  • single shaft
Speed
  • 10 knots (19 km/h; 12 mph) surfaced
  • 4 knots (7.4 km/h; 4.6 mph) submerged
Range
  • 1,500 nmi (2,800 km; 1,700 mi) at 8 knots (15 km/h; 9.2 mph) surfaced
  • 32 nmi (59 km; 37 mi) at 4 knots (7.4 km/h; 4.6 mph) submerged
Test depth100 m (328 ft)
Capacity24 tons freight or 40 troops
Complement23
Armament

Yu 1007 was an Imperial Japanese Army transport submarine of the Yu 1001 subclass of the Yu I type. Constructed for use during the latter stages of World War II, she served in the waters of the Japanese archipelago.

Construction

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In the final two years of World War II, the Imperial Japanese Army constructed transport submarines — officially the Type 3 submergence transport vehicle and known to the Japanese Army as the Maru Yu — with which to supply its isolated island garrisons in the Pacific. Only submarines of the Yu I type were completed and saw service. The Yu I type was produced in four subclasses, each produced by a different manufacturer and differing primarily in the design of their conning towers and details of their gun armament, although one source[1] states that the Yu 1001 subclass differed from the original Yu 1 sublcass in other ways, being longer, having a slightly larger displacement and more powerful diesel engine that increased the maximum speed by 2 knots (3.7 km/h; 2.3 mph), and probably having no deck gun installed. None of the Yu I-type submarines carried torpedoes or had torpedo tubes. Yu 1007 a unit of the Yu 1001 subclass.[2]

Japan Steel Works (Nihon Seikojo) constructed Yu 1007 at its plant in Hiroshima, Japan.[2][3] Records of the details of the construction of Yu 1007 have not been discovered, but the earliest Yu I-type submarines of the original Yu 1 subclass were laid down and launched during the latter half of 1943 and entered service at the end of 1943 or early in 1944.[3][4]

Service history

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Yu 1007 spent her operational career in Japanese home waters.[1] She was assigned to Detachment Kuchinotsu, Transport Submarine Group, on 15 May 1945,[citation needed] and to Detachment Mikuriya in June 1945.[citation needed] Surviving records of the activities of Imperial Japanese Army submarines are fragmentary,[4][5] and no records have been discovered describing her specific activities in support of any particular operation.[3][1]

World War II ended with the cessation of hostilities on 15 August 1945. Yu 1007 surrendered to the Allies later in August 1945.[3] She sank in a storm at Mikuriya either later in 1945[3] or in 1946,[6] according to different sources. She subsequently was salvaged, and was scrapped by Kawanami at Nagasaki in January 1948.[6]

References

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Footnotes

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  1. ^ a b c Mühlthaler, p. 330.
  2. ^ a b Mühlthaler, p. 329.
  3. ^ a b c d e IJA Subs, ijnsubsite.com Accessed 14 May 2022
  4. ^ a b Mühlthaler, pp. 329–330.
  5. ^ Bailey, pp. 55–57, 63.
  6. ^ a b Bailey, p. 57.

Bibliography

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  • Bagnasco, Erminio (1977). Submarines of World War Two. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-962-6.
  • Bailey, Mark L. (1998). "Imperial Japanese Army Transport Submarines: Details of the YU-2 Class Submarine YU-3". Warship International. XXXV (1): 55–63.
  • Carpenter, Dorr B. & Polmar, Norman (1986). Submarines of the Imperial Japanese Navy 1904–1945. London: Conway Maritime Press. ISBN 0-85177-396-6.
  • Chesneau, Roger, ed. (1980). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press. ISBN 0-85177-146-7.
  • Mühlthaler, Erich (1998). "Re:Imperial Japanese Army Transport Submarines". Warship International. XXXV (4): 329–330. ISSN 0043-0374.
  • Rekishi Gunzō, History of Pacific War Extra, Perfect guide, The submarines of the Imperial Japanese Forces, Gakken, Tokyo Japan, 2005, ISBN 4-05-603890-2.
  • Rekishi Gunzō, History of Pacific War Vol.45, Truth histories of the Imperial Japanese Naval Vessels, Gakken, Tokyo Japan, 2004, ISBN 4-05-603412-5.
  • Ships of the World No.506, Kaijinsha, Tokyo Japan, 1996.
  • The Maru Special, Japanese Naval Vessels No.43 Japanese Submarines III, Ushio Shobō, Tokyo Japan, 1980.
  • Atsumi Nakashima, Army Submarine Fleet, "The secret project !, The men challenged the deep sea", Shinjinbutsu Ōraisha, Tokyo Japan, 2006, ISBN 4-404-03413-X.
  • 50 year history of the Japan Steel Works (first volume and second volume), Japan Steel Works, 1968.
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