JS Chiyoda (AS 405) was a submarine rescue ship of the Japan Maritime Self-Defense Force.[2]

JS Chiyoda at Kobe on 25 July 2015
History
Japan
Name
  • Chiyoda
  • (ちよだ)
BuilderMitsui, Tamado
Laid downJanuary 19, 1983
LaunchedDecember 7, 1983
CommissionedMarch 27, 1985
DecommissionedMarch 20, 2018
Class overview
Preceded byFushimi class
Succeeded byChihaya class (1998)
General characteristics [1]
Displacement3,650 long tons (3,710 t) standard 4,450 long tons (4,520 t) full load
Length113 m (370.7 ft)
Beam17.6 m (57.7 ft)
Draft4.6 m (15.1 ft)
Propulsion2× Mitsui 8L42M diesels

7,860 kW (10,540 hp)

2 shafts
Speed17 kn (20 mph; 31 km/h)
Complement120
Aviation facilitiesHelicopter deck
NotesCarried one DSRV

She was replaced by a newer ship of the same name, with a slightly different designation: JS Chiyoda (ASR 404). The new ship is similar, but improved, at: 128 m (420 ft) long, with a standard displacement of 5,600 tonnes (6,173 tons), and was commissioned on 20 March 2018.[3]

History

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Chiyoda was built by Mitsui Engineering & Shipbuilding in Tamano.[4] She was laid down on January 19, 1983, and launched later that year on December 7, 1983. The Chiyoda was a multipurpose submarine rescue and saturation-diving capable ship belonging to the Japan Maritime Self-Defense Force (JMSDF). Built in 1985, it served as the mother ship for the sole deep submergence rescue vessel (DSRV) in JMSDF.[4][5]

The design of the JS Chiyoda served as the basis for the next vessel which was the first ASR ship. However, the submarine support functions present in the JS Chiyoda (AS 405) were no longer built into the follow-on ASR ships.

Citations

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  1. ^ Saunders 2002, p. 395
  2. ^ Jane's Fighting Ships. S. Low, Marston & Company. 2007. p. 398. ISBN 978-0-7106-2799-5.
  3. ^ Takahashi, Kosuke (March 20, 2018). "JMSDF commissions new submarine rescue ship". Jane's Information Group.
  4. ^ a b "AS Chiyoda Class". Global Security. Archived from the original on March 20, 2018. Retrieved March 20, 2018.
  5. ^ United States. Office of Naval Research. Liaison Office, Far East (1991). Scientific information bulletin. Dept. of the Navy, Office of the Chief of Naval Research, Far East. p. 125. The Chiyoda is a multipurpose submarine rescue and saturation-diving- capable ship belonging to the Japan Maritime Self-Defense Force (JMSDF). Built in 1985, it served as the mother ship for the sole deep submergence rescue vessel (DSRV) in JMSDF.

References

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  • Saunders, Stephen, ed. (2002). Jane's Fighting Ships 2002–2003. Coulsdon, UK: Jane's Information Group.