An unidentified Yu I-type submarine of the Yu 1001 subclass in Tateyama Bay on the coast of Japan in 1945.
History
Japan
NameYu 1005
BuilderJapan Steel Works, Hiroshima, Japan
Fate
  • Surrendered August 1945
  • Scuttled or scrapped
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 1005 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

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 1005 a unit of the Yu 1001 subclass.[2]

Japan Steel Works (Nihon Seikojo) constructed Yu 1005 at its plant in Hiroshima, Japan.[2][3] Records of the details of the construction of Yu 1005 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

Yu 1005 spent her operational career in Japanese home waters.[1] In January 1945, several Type I transport submarines were sent to operate from Shimoda on the southern tip of the Izu Peninsula in Shizuoka Prefecture on Honshu,[1] and the submarines began transport missions from Shimoda in March 1945.[1] Assigned to Detachment 2, Transport Submarine Group, on 13 February 1945,[1] Yu 1005 made a round-trip supply voyage from Shimoda to Hachijō-jima in the Philippine Sea sometime during 1945.[1][3]

World War II ended with the cessation of hostilities on 15 August 1945. Yu 1005 surrendered to the Allies later in August 1945.[3] She subsequently either was scuttled or scrapped.[1]

References

Footnotes

  1. 1 2 3 4 5 6 7 Mühlthaler, p. 330.
  2. 1 2 Mühlthaler, p. 329.
  3. 1 2 3 4 IJA Subs, ijnsubsite.com Accessed 14 May 2022
  4. ↑ Mühlthaler, pp. 329–330.

Bibliography

  • 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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