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SSA Dolgorae (KSS-1) class 


dolgorae

Dolgorae (KSS-1) class SSA

(South Korea)

No.

Launch.

Comm.

Decom.

Fate

KSS-051

1983

1983

2003

In reserve

KSS-052

1983

1983

-

In service

KSS-053

1983

1983

-

In service

Notes: These midget submarines were the first South Korean submarines of any type. They were acquired primarily to allow the South Korean navy to obtain it’s initial experience with the basics of operating a submarine force. The secondary mission was acting as an OPFOR asset to train surface ASW ships in the detection of North Korean midget submarines.

Development of the type was handled by the Agency for Defense Development (ADD) in 1982, with construction being done by Korea Tacoma Shipyard. All are homeported at Cheju island, south of the South Korean mainland.

The small hull is of typical configuration, with the rudders and stern planes being placed behind the propeller. The small conning tower houses the partially-retractable periscope and folding snorkel. The propulsion is pure electric and the diesel is not linked to the shaft.

The sonar array is covered by a teardrop-shaped plexiglass fairing. The fire control system can generate torpedo solutions on eight tracked targets. The armament is a bit of a mystery; almost all sources (including the usually authorative Jane’s Fighting Ships) state two 406mm tubes however the South Korean navy is not known to use any torpedo in that caliber. It’s possible the torpedo tubes are unused. Conversely they may actually be two 21" tubes.

With the Type 209 project completed and South Korean submarining skills well matured, there is less need for these midget submarines. One was put into reserve in 2003; there had been talk of using it as a testbed for lithium-ion batteries but this will apparently not occur. In November 2011, South Korea unveiled plans for a new mini-sub designated KSS-500A. If it enters production, this class will likely be retired.

Displacement: 150t surfaced, 175t submerged Dimensions: 82'x6'11"x7' Machinery: Electric: 1 Hyundai diesel w/Hyundai motorgenerator, 1 electric motor (w/lead-acid batteries), 1 shaft w/non-CP 5-bladed prop Max speed: 16kts surfaced, 9kts submerged Range: (unknown, rarely venture far from port) Complement: 6 + 8 passengers

WEAPONS

x2 406mm torpedo tubes (see notes)

SENSORS-Radar

Portable I-band navigation (submarine has to be fully surfaced, no real combat value)

SENSORS-EW

Pilkington CK-37 optronic periscope

SENSORS-Sonar

Signaal LOPAS bow array                         4NM active/passive (range, bearing, depth, class)

Atlas Elektronik fathometer

 

 

Entry created by: Jason W. Henson
Contributors:

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