NAVYPEDIA

Photo

Osumi 2008

Ships

Name	No	Yard No	Builder	Laid down	Launched	Comp	Fate
おおすみ [Osumi]	LST4001		Mitsui, Tamano	6.12.1995	18.11.1996	11.3.1998	in service (2019)
しもきた [Shimokita]	LST4002		Mitsui, Tamano	30.11.1999	29.11.2000	12.3.2002	in service (2019)
くにさき [Kunisaki]	LST4003		Hitachi, Maizuru	7.9.2000	13.12.2001	26.2.2003	in service (2019)

100 - 1000 t displacement/ BRT tonnage vessels

Name No Yard No Builder Laid down Launched Comp Fate おおすみ [Osumi] LST4001   Mitsui, Tamano 6.12.1995 18.11.1996 11.3.1998 in service (2019) しもきた [Shimokita] LST4002   Mitsui, Tamano 30.11.1999 29.11.2000 12.3.2002 in service (2019) くにさき [Kunisaki] LST4003   Hitachi, Maizuru 7.9.2000 13.12.2001 26.2.2003 in service (2019)

Technical data

Displacement standard, t	8900
Displacement full, t	14000
Length, m	170.0 wl 178.0 oa
Breadth, m	25.8
Draught, m	6.00 mean 7.50 full load
No of shafts	2
Machinery	2 Mitsui 16V42MA diesels
Power, h. p.	26000
Max speed, kts	22
Fuel, t	diesel oil
Endurance, nm(kts)
Armament	2 x 6 - 20/76 Mk 15 Phalanx, 1 x 1 - 12.7/90, helicopter deck
Military load	2 LCAC, 2 LCVP, 14 tanks or 1400 t cargo, 330 troops
Electronic equipment	OPS-14C, OPS-28B, OPS-20, 2x Mk 90 radars, ECM suite
Complement	135

Standard scale images

Graphics

OSUMI dock landing ships (1998 - 2003)

Project history

Official "standard" displacement appears to be several thousand tons below the actual figure. Although given an LST-type designation, the design is in reality a dock landing ship configured to accept two U.S. LCAC class air-cushion vehicle landing craft in a 70m-long docking well; there is no bow door, and the ship is not intended to beach. Although the upper deck is a relatively unobstructed 130x23m, only the after portion is used as a helicopter landing position (for two CH-47 Chinook-size aircraft). The remainder of the deck is used for vehicle cargo stowage. There are two vehicle elevators rising to the flight deck, one forward on the centerline and one to starboard abaft the island superstructure, but neither is large enough to accommodate a helicopter. The elevators serve a 50x15m vehicle cargo deck, which also has side ramps port and starboard; abreast the side ramps on the centerline is a vehicle turntable. In an emergency, can accommodate up to 1000 passengers. The superstructure is shaped to reduce radar reflection, and its width, in combination with the breadth of the island structure, precludes using the flight deck for fixed-wing aircraft operations. A previously planned 76-mm gun will not be installed.

Modernizations

None.

Naval service

No significant events.