DE Chikugo Class
The design of the CHIKUGO Type DE was based on the previous ISUZU Type, but the cost of ship-building was kept down by mass-production. The name ship CHIKUGO was completed in Mistui-Tamano ship-yard on 31 July 1970. A total of eleven similar type warships were built.
The escort ship for the local party is used for coast patrol and fleet guard and antisubmarine patrol. This DE class was built under the third defense buildup plan. Because the main duty was supposed to be antisubmarine operation, the anti-submarine armament was enlarged. It is a small-sized warship, in contrast to the large-sized escort ship with ocean going characteristics which belong to the Escort Division. The design was overstrained in order to accomplish the antisubmarine operation, and the ASROC anti-submarine rocket launcher which it carries gives the design an imbalanced impression. This design strengthened the anti-submarine equipment of the previous DE Isuzu type to a greater extent, with the ASROC equipment and the completeness of the sonar. This forced a compromise with the displacement, which was limited in order to lose dead space to the utmost. This reached the point where it adopt measures as the promotion of vibration-proof soundproof measure and improvement of hull strength. Among the later units of this class, the displacement waas increased somewhat. It is not conspicuous, but there is tactical control arrangement which exerted a big influence on duty accomplishment.
Eventually the warship's deterioration and the introduction of later generation warships led to the retirement being started consecutively from 1996 by the assignment changing to local party. By the end of 2000 there werew remaining on active service only three units, with with these active warships scheduled for consecutive retirement by 2002.
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