JDS Shiretoko
Class overview
Name	Ōsumi class
Builders	Sasebo Naval Arsenal
Operators	Japan Maritime Self-Defense Force
Succeeded by	Atsumi-class tank landing ship
Built	1944-1945
In commission	1961-1976
Planned	3
Completed	3
Retired	3
General characteristics
Type	Landing ship tank
Displacement	1,780 long tons (1,809 t) light 3,640 long tons (3,698 t) full
Length	328 ft (100 m)
Beam	50 ft (15 m)
Draft	Unloaded : 2 ft 4 in (0.71 m) forward 7 ft 6 in (2.29 m) aft Loaded : 8 ft 2 in (2.49 m) forward 14 ft 1 in (4.29 m) aft
Propulsion	2 × General Motors 12-567 diesel engines, two shafts, twin rudders
Speed	12 knots (22 km/h; 14 mph)
Boats & landing craft carried	2 LCVPs
Troops	Approximately 140 officers and enlisted men
Complement	8-10 officers, 100-115 enlisted men
Armament	1 × single 3"/50 caliber gun mount 8 × 40 mm guns 12 × 20 mm guns

The Osumi-class tank landing ship were a class of transport ships operated by the Maritime Self-Defense Force. It was recommissioned with the donation of three LST-542-class tank landing ship from the US Navy. Initially, it was categorized as a amphibious landing ship, but the ship type was changed on 1 April 1971.^[1]

The Maritime Self-Defense Force's transport and landing craft unit consists of six general-purpose landing craft (LCUs) (built in Japan by extraterritorial procurement) and mobile landing craft (built in Japan) provided by the US Navy based on the MSA Agreement in 1955 (Showa 30). It all started with the establishment of a fleet of 29 ships. However, all of these were small, had limited transport and landing capabilities, and lacked seakeeping. From this, based on the MSA agreement, three LST-542-class tank landing ships, which had been mothballed in the United States, will be provided.

The LST-542 class was the last model of the LST-1-class tank landing ship, and the displacement is increased by adding one layer of bridge and adding machine guns based on the early model, and it is also the latter model In comparison, the amount of cargo loaded has been reduced to 1,900 tons due to the strengthening of water production capacity. In addition, Ōsumi-class had three davits on each side that could carry landing craft such as mobile landing craft (LCM) and vehicle personnel landing craft (LCVP), but JDS Shiretoko has a bridge structure. There is only one on each side.

• Couhat, Jean Labayle, ed. (1986). Combat Fleets of the World 1986/87. Annapolis, Maryland: Naval Institute Press. ISBN 0-85368-860-5.
• Gardiner, Robert; Chumbley, Stephen & Budzbon, Przemysław, eds. (1995). Conway's All the World's Fighting Ships 1947–1995. Annapolis, Maryland: Naval Institute Press. ISBN 1-55750-132-7.
• Sharpe, Richard, ed. (1991). Jane's Fighting Ships 1991–92 (94 ed.). Surrey, United Kingdom: Jane's Information Group. ISBN 0-7106-0960-4.