was one of fourteen s built for the

Imperial Japanese Navy The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, when it was dissolved following Japan's surrender ...

during World War II.

Background and description

The ''Etorofu'' class was an improved version of the preceding with a greater emphasis on

anti-submarine warfare Anti-submarine warfare (ASW, or in older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, submarines, or other platforms, to find, track, and deter, damage, or destroy enemy submarines. Such operations are t ...

. The ships measured overall, with a

beam Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially localized grou ...

of and a draft of .Chesneau, p. 205 They displaced at standard load and at deep load. The ships had two

diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-call ...

s, each driving one propeller shaft, which were rated at a total of for a speed of . The ships had a range of at a speed of .Jentschura, Jung & Mickel, p. 187 The main armament of the ''Etorofu'' class consisted of three Type 3 guns in single mounts, one

superfiring Superfiring armament is a naval military building technique in which two (or more) turrets are located in a line, one behind the other, with the second turret located above ("super") the one in front so that the second turret can fire over the ...

pair aft and one mount forward of the

superstructure A superstructure is an upward extension of an existing structure above a baseline. This term is applied to various kinds of physical structures such as buildings, bridges, or ships. Aboard ships and large boats On water craft, the superstruct ...

. They were built with four Type 96 anti-aircraft guns in two twin-gun mounts, but the total was increased to 15 guns by August 1943. 36

depth charge A depth charge is an anti-submarine warfare (ASW) weapon. It is intended to destroy a submarine by being dropped into the water nearby and detonating, subjecting the target to a powerful and destructive Shock factor, hydraulic shock. Most depth ...

s were stowed aboard initially, but this later increased by August 1943 to 60 depth charges with a Type 97 trench mortar and six depth charge throwers. They received Type 22 and Type 13 radars and Type 93 sonar in 1943–44.

Construction and career

''Tsushima'' was launched by Tsurumi on 20 March 1943 and completed on 15 August. She served on repatriation duties until 1947 when she was turned over to the Republic of China Navy on 31 July and renamed ''Lin An''.

Notes

References

* * {{DEFAULTSORT:Tsushima World War II naval ships of Japan Etorofu-class escort ships 1943 ships Ships built in Japan Ships of the Republic of China Navy