Kaibōkan

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IJN Etorofu in May 1943.

Kaibōkan (海防艦, "sea defence ship") or coastal defense ship refers to a type of naval ship used by the Imperial Japanese Navy during World War II for escort duty and coastal defense. The term escort ship is used by the United States Navy to describe this category of Japanese ships.^[1]

In the course of the war, the design was simplified and scaled down to permit larger numbers of vessels to be built more quickly.

Classes

Shimushu class (Ishigaki)

Also known as Type A - multi purpose patrol, escorts or minesweeper.
Main Engine: Diesel X 2, double shaft (4,200shp)
Max Speed: 19.7kn
Range: 8,000 mile (16kn)
Fuel: Oil X 120t

Etorofu class (Matsuwa)

Modified Type A
Main Engine: Diesel X 2, double shaft (4,200shp)
Max Speed: 19.7kn
Range: 8,000 mile (16kn)
Fuel: Oil X 120t

Mikura class (Chiburi)

Also known as Type B
Main Engine: Diesel X 2, double shaft (4,200shp)
Max Speed: 19.5kn
Range: 6,000 mile (16kn)
Fuel: Oil X 120t

Ukuru class (Okinawa)

Modified Type B
Main Engine: Diesel X 2, double shaft (4,200shp)
Max Speed: 19.5kn
Range: 5,754 mile (16kn)
Fuel: Oil X 120t

Others

In addition two former Chinese light cruisers were used, renamed the Ioshima and Yasoshima.

References

↑ Bob Hackett, Sander Kingsepp and Peter Cundall (15 September 2013). "Stories and Battle Histories of the IJN's Escorts". Combinedfleet.com. Retrieved 2013-10-19.

Stories and Battle Histories of the IJN's Escorts 9 July 2011 By Bob Hackett, Sander Kingsepp and Peter Cundall
Kimata Jirō (木俣滋郎). Military history of Japan's coastal defense ships (『日本海防艦戦史』). Toshu Publishing (図書出版社), 1994. p. 299

v t e Modern naval ships

Aircraft carriers	Aircraft cruiser Amphibious assault ship Anti-submarine warfare carrier Balloon carrier CAM ship Escort carrier Fighter catapult ship Helicopter carrier Light aircraft carrier Merchant aircraft carrier Seaplane tender Submarine aircraft carrier Supercarrier

Battleships	Coastal defence ship Dreadnought (Standard-type battleship) Fast battleship Pre-dreadnought battleship Super battleship Treaty battleship

Cruisers	Armored cruiser Battlecruiser Flight deck cruiser Heavy cruiser Pocket battleship Light cruiser Merchant raider Protected cruiser Strike cruiser Unprotected cruiser

Escort	Aviso Convoy rescue ship Destroyer Destroyer escort Frigate Guided missile destroyer Kaibokan Sloop

Transport	Amphibious transport dock Amphibious warfare ship Attack transport Dock landing ship Landing craft Landing ship heavy Landing ship, infantry Landing ship medium Landing ship support, large Landing ship, tank Landing ship vehicle Troopship

Patrol craft	Armed boarding steamer Armed yacht Coastal motor boat Corvette Gunboat Harbour defence motor launch Motor launch Naval drifter Naval trawler Ocean boarding vessel Patrol boat Q-ship Steam gun boat Submarine chaser Torpedo boat

Fast attack craft	E-boat MAS MGB Missile boat MTB MTM MTSM PT boat Shinyo

Mine warfare	Danlayer Destroyer minesweeper Mine countermeasures vessel Mine planter Minehunter Minelayer Minesweeper

Command and support	Ammunition ship Auxiliary repair dock Auxiliary ship Collier Combat stores ship Command ship Crane vessel Depot ship Destroyer tender Dispatch boat Fast combat support ship General stores issue ship Hospital ship Net laying ship Replenishment oiler Submarine tender

Submarines	Attack submarine Ballistic missile submarine Cruise missile submarine Deep-submergence vehicle DSRV Midget submarine U-boat

Miscellaneous	Arsenal ship Barracks ship Breastwork monitor Flagship Guard ship Littoral combat ship Monitor River monitor Training ship

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