The ''Harukaze''-class destroyer was the first indigenous post-

World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...

Japanese

destroyer In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally developed in ...

class. Its main mission was

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 ...

. Almost all equipment was supplied from the United States according to the

U.S. and Japan Mutual Defense Assistance Agreement The U.S. and Japan Mutual Defense Assistance Agreement was signed on March 8, 1954 in Tokyo between John Allison of the United States and Katsuo Okazaki of Japan. The accord contained eleven articles and seven amendments (or annexes). The agreeme ...

. Sensor systems on-board was standard equipment in the U.S. Navy at that time, for example, the AN/SPS-6 air-search radar, the AN/SPS-5 surface-search radar, the QHB search sonar, the QDA attack sonar. Three 5-inch/38 caliber Mark 12 guns were mounted on Mark 30 single mounts, and controlled by a Mark 51 director. The JMSDF wasn't satisfied with performance of the director, so later the Mark 51 was replaced by the Swedish advanced GFCS developed by

Contraves Rheinmetall Air Defence AG is a division of German armament manufacturer Rheinmetall, created when the company's Oerlikon Contraves unit was renamed on 1 January 2009 and integrated with Rheinmetall's other air-defence products. Oerlikon Contr ...

(''Harukaze'') or American Mark 57 (''Yukikaze''). At the same time, K-guns and

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 ...

racks were reduced by half and replaced by

Mark 32 torpedo The Mark 32 torpedo was the first active acoustic antisubmarine homing torpedo in United States Navy service. The Mark 32 was withdrawn from service use with the introduction of the Mark 43 torpedo. Ten were manufactured by Leeds & Northrup, Phi ...

es with two Mark 2 over-the-side launchers.

Ships

References

External links

{{Combatant ship classes of the Japan Maritime Self-Defense Force Destroyer classes