Japanese submarine Yu 2001

Yu 2001 on trials in Tokyo Bay in 1944.
History
Japan
Name	Yu 2001
Builder	Ando Iron Works , Tsukishima,  Tokyo,  Japan
Launched	12 February 1944
Fate	Surrendered August 1945 Scuttled or scrapped
General characteristics Yu I type
Type	Transport submarine
Displacement	274 long tons (278 t) surfaced 346 long tons (352 t) submerged
Length	41.40 m (135 ft 10 in) overall
Beam	3.90 m (12 ft 10 in)
Draft	3.00 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 depth	100 m (328 ft)
Capacity	24 tons freight or 40 troops
Complement	23
Armament	1 × Type 4 37 mm shipboard gun 2 × IJN Type 92 13 mm antiaircraft guns

Yu 2001 was an Imperial Japanese Army transport submarine, the lead unit of the Yu 2001 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. The submarines of the Yu 2001 subclass notably differed from the other Yu I-type submarines in their "repose room," ^[1] a deckhouse extending aft of the conning tower which gave the crew more room and greater comfort.^{[ citation needed ]} None of the Yu I-type submarines carried torpedoes or had torpedo tubes. Yu 2001 was a unit of the Yu 2001 subclass. ^[1]

Ando Iron Works (Ando Tekkojo) constructed Yu 2001 in the Tsukishima district of Tokyo, Japan. ^{[1] [2]} She was launched on 12 February 1944.^{[ citation needed ]}

Service history

Yu 2001 spent her operational career in Japanese home waters. ^[1] Surviving records of the activities of Imperial Japanese Army submarines are fragmentary, ^{[3] [4]} and no records have been discovered describing her specific activities in support of any particular operation. ^{[2] [1]}

World War II ended with the cessation of hostilities on 15 August 1945.Yu 2001 surrendered to the Allies later in August 1945. ^[2] She subsequently either was scuttled or scrapped. ^[1]

References

Footnotes

1. Mühlthaler, p. 330.
2. IJA Subs, ijnsubsite.com Accessed 14 May 2022
3. Mühlthaler, pp. 329–330.
4. Bailey, pp. 55–57, 63.

Bibliography

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• Carpenter, Dorr B. & Polmar, Norman (1986). Submarines of the Imperial Japanese Navy 1904–1945. London: Conway Maritime Press. ISBN   0-85177-396-6.
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