Japanese submarine Yu 23
| History | |
|---|---|
 Japan
| |
| Name: | Yu 23 |
| Builder: | Hitachi Kasado Works, Kudamatsu, Japan |
| Fate: |
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| General characteristics Yu I type | |
| Type: | Transport submarine |
| Displacement: |
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| 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: |
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| Speed: |
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| Range: |
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| Test depth: | 100 m (328 ft) |
| Capacity: | 24 tons freight or 40 troops |
| Complement: | 23 |
| Armament: | |
Yu 23 was an Imperial Japanese Army transport submarine of the Yu 1 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[edit]
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. None carried torpedoes or had torpedo tubes. Yu 23 was a unit of the Yu 1 subclass.[1]
The Hitachi Kasado Works (Hitachi Kasado Seisakujo) at Kudamatsu, Japan, constructed Yu 23.[1][2] Records of the details of the construction of Yu 23 have not been discovered, but the earlier Yu I-type submarines were laid down and launched during the latter half of 1943 and entered service at the end of 1943 or early in 1944.[2][3]
Service history[edit]
Yu 23 spent her operational career in Japanese home waters.[4] Surviving records of the activities of Imperial Japanese Army submarines are fragmentary,[3][5] and no records have been discovered describing her specific activities in support of any particular operation.[2][4]
World War II ended with the cessation of hostilities on 15 August 1945.Yu 23 surrendered to the Allies later in August 1945.[2] She subsequently either was scuttled or scrapped.[4]
References[edit]
Footnotes[edit]
Bibliography[edit]
- Bagnasco, Erminio (1977). Submarines of World War Two. Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-962-6. Search this book on
- 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. Unknown parameter
|name-list-style=ignored (help) Search this book on - Chesneau, Roger, ed. (1980). Conway's All the World's Fighting Ships 1922–1946. Greenwich, UK: Conway Maritime Press. ISBN 0-85177-146-7. Search this book on
- 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 Search this book on ..
- 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 Search this book on ..
- 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 Search this book on ..
- 50 year history of the Japan Steel Works (first volume and second volume), Japan Steel Works, 1968.
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