Article · Wikipedia archive · Last revised Jul 13, 2026

JS Isoshio

JS Isoshio (SS-594) is the fifth boat of the Oyashio-class submarines. She was commissioned on 14 March 2002.

Last revised
Jul 13, 2026
Read time
≈ 1 min
Length
266 w
Citations
3
Source
Wikipedia ↗
JS Isoshio
History
Japan
Name
  • Isoshio
  • (いそしお)
Ordered1997
BuilderKawasaki, Kobe
Cost¥52.19 million
Laid down9 March 1998
Launched27 November 2000
Commissioned14 March 2002
Home portKure
IdentificationPennant number: SS-594
StatusActive
General characteristics
Class & typeOyashio-class submarine
Displacement
Length81.7 m (268 ft 1 in)
Beam8.9 m (29 ft 2 in)
Draught7.4 m (24 ft 3 in)
Propulsion
  • Diesel-electric
  • 2 Kawasaki 12V25S diesel engines
  • 2 Kawasaki alternators
  • 2 Toshiba motors
  • 3,400 hp (2,500 kW) surfaced
  • 7,750 hp (5,780 kW) submerged
Speed
  • 12 knots (22 km/h; 14 mph) (surfaced)
  • 20 knots (37 km/h; 23 mph) (submerged)
Complement70 (10 officers)
Sensors &
processing systems
  • Sonar: Hughes/Oki ZQQ-6 hull-mounted sonar, flank arrays, 1 towed array
  • Radar: JRC ZPS 6 I-band search radar.
Armament

JS Isoshio (SS-594) is the fifth boat of the Oyashio-class submarines. She was commissioned on 14 March 2002.1

Construction and career

Isoshio was laid down at Kawasaki Heavy Industries Kobe Shipyard on 9 March 1998 and launched on 27 November 2000. She was commissioned on 14 March 2002 and deployed to Kure.23

On 30 July 2003, she left Kure for RIMPAC 2003 in the United States and returned to Kure in late October.

  • JS Isoshio underway.
    JS Isoshio underway.
  • JS Isoshio underway.
    JS Isoshio underway.
  • JS Isoshio underway.
    JS Isoshio underway.
  • JS Isoshio on 11 December 2016.
    JS Isoshio on 11 December 2016.
Citations

Citations

  1. Takao, Ishibashi (2002). All Maritime Self-Defense Force Ships 1952-2002. Namiki Shobo.
  2. World Ships Special Edition 66th Collection Maritime Self-Defense Force All Ship History. Gaijinsha. 2004.
  3. World Ships Special Edition Vol. 665: History of Maritime Self-Defense Force Submarines. Gaijinsha. 2006.
External links

Media related to JS Isoshio (SS-594) at Wikimedia Commons