Ōsumi class LST

Class overview
Builders:	Mitsui Engineering & Shipbuilding, Tamano Hitachi Zosen, Maizuru
Operators:	Japan Maritime Self-Defense Force
Planned:	3
Completed:	3
Active:	3
General characteristics
Class and type:	Ōsumi class LST
Displacement:	8,900 tons standard 14,000 tons full load
Length:	178 m
Beam:	25.8 m
Draught:	17.0 m
Draft:	6.0 m
Propulsion:	2 × Mitsui 16V42M-A Diesel (2 shafts propulsion, 26,000 bhp.) 1 × bow thruster
Speed:	22 knots (41 km/h)
Complement:	135, 138 (LST4002-4003)
Sensors and processing systems:	OPS-14C air search radar,OPS-28D surface search radar,OPS-20 navigation radar, TACAN
Electronic warfare and decoys:	4 × Mark 36 SRBOC
Armament:	2 × 20 mm Phalanx CIWS,2 × 12.7mm machine gun M2
Notes:	Two Landing Craft Air Cushion (LCAC)

The Ōsumi class LST (おおすみ型輸送艦), is a Japanese amphibious transport dock. While the JMSDF describes the Ōsumi class as tank landing ships, they lack the bow doors and beaching capability traditionally associated with LSTs. Functionally, their well deck makes the Ōsumi class more like a dock landing ship (LSD) or amphibious transport dock (LPD).

Globalsecurity.org noted in its report on the Ōsumi class that "the program originated in a proposal for a small carrier for defensive and mine countermeasures (MCM) purposes, but this was deemed politically unacceptable, and the project was reworked as an amphibious ship".^{[dubious – discuss]}

Ships in the class

Pennant No.	Name	Home port	Unit	Shipyard	Plan	Laid down	Launched	Commissioned
LST 4001	Ōsumi	Kure	Landing Div 1	Mitsui, Tamano	1993	6 December 1995	18 November 1996	11 March 1998
LST 4002	Shimokita	Kure	Landing Div 1	Mitsui, Tamano	1998	30 November 1999	29 November 2000	12 March 2002
LST 4003	Kunisaki	Kure	Landing Div 1	Hitachi, Maizuru	1999	7 September 2000	13 December 2001	26 February 2003

External links

• GlobalSecurity.org - LST Osumi Class