The class entered service with Chikugo in 1971. Eleven ships were constructed and saw service until the mid-1990s and early 2000s. All vessels in the class were retired with Noshiro being the last to decommission in 2003.
Designedit
This class was designed as the modified variant of the Isuzu class, the preceding destroyer escort class. The main anti-submarine weapon was changed from the M/50 375 mm (14.8 in) ASW rocket launcher to the ASROCAnti-submarine missile. The octuple launcher for ASROC was stationed at the mid-deck, and the entire ship design was prescribed by this stationing. To exploit the range of ASROC, this class was equipped with the long-range low-frequency (5 kHz) bow sonar, OQS-3A (Japanese version of the AN/SQS-23),[1] and in addition, the latter batch had SQS-35(J) Variable Depth Sonar system. These anti-submarine sensors and weapons could be compare with those of destroyers in the main fleet of this age, such as Minegumo class and Yamagumo class.[2]
In contrast to their anti-submarine capability, the anti-aircraft fire power was weakened compared to the preceding class. The foredeck gun was a Type 68 3"/50 caliber twin cannon controlled by a FCS-1B Gun Fire Control System, which was standard anti-air weapon system in the JMSDF of this age. But the afterdeck gun was the old-fashioned Bofors 40 mm L/60 twin cannon, lacking the anti-ship missile defense (ASMD) capability. The final batch of this class was planned to equipped with the new Oerlikon 35 mm twin cannon, but this plan was frustrated because of the budgetary consideration.[2]
^ abAbe, Yasuo (May 2003). "Looking back on Chikugo class escort vessels". Ships of the World (in Japanese) (610). Kaijinn-sha: 92–97.
April 11, 2024
chikugo, class, destroyer, escort, frigate, class, destroyer, escorts, built, japanese, maritime, self, defense, force, successor, isuzu, class, with, same, mission, this, class, followed, ishikari, this, first, japanese, destroyer, escort, class, carry, asroc. The Chikugo class destroyer escort or frigate was a class of destroyer escorts built by the Japanese Maritime Self Defense Force as the successor of the Isuzu class with the same ASW mission This class was followed by JDS Ishikari This is the first Japanese destroyer escort class to carry ASROC anti submarine missiles JDS Niyodo on 16 February 1979Class overviewNameChikugo classOperators Japan Maritime Self Defense ForcePreceded byIsuzu classSucceeded byIshikari classBuilt1968 1976In commission1971 2003Completed11Retired11General characteristicsTypeDestroyer escortDisplacement1 700 1 800 long tons 1 727 1 829 t full loadLength93 0 m 305 1 ft Beam10 8 m 35 ft Draught3 5 m 11 ft Depth7 0 metres 23 0 ft PropulsionCODAD propulsion system 2 shafts 4 diesel engines 16 000 hp 12 000 kW Speed25 knots 46 km h 29 mph Range5 500 nmi 10 200 km at 20 kn 37 km h 23 mph Complement165Sensors and processing systemsTDS 1 Target Designation System OPS 14 2D air search radar OPS 17 surface search radar FCS 1B gun FCS OQS 3A bow sonar SQS 35 J VDS SFCS 4 Underwater Battery FCSElectronic warfare amp decoysNOLR 1 ESM Earlier batch NOLR 5 ESM Latter batch Armament2 3 50 caliber guns 2 40 mm AA guns 1 ASROC ASW missile launcher 2 triple 324 mm ASW torpedo tubesThe class entered service with Chikugo in 1971 Eleven ships were constructed and saw service until the mid 1990s and early 2000s All vessels in the class were retired with Noshiro being the last to decommission in 2003 Design editThis class was designed as the modified variant of the Isuzu class the preceding destroyer escort class The main anti submarine weapon was changed from the M 50 375 mm 14 8 in ASW rocket launcher to the ASROC Anti submarine missile The octuple launcher for ASROC was stationed at the mid deck and the entire ship design was prescribed by this stationing To exploit the range of ASROC this class was equipped with the long range low frequency 5 kHz bow sonar OQS 3A Japanese version of the AN SQS 23 1 and in addition the latter batch had SQS 35 J Variable Depth Sonar system These anti submarine sensors and weapons could be compare with those of destroyers in the main fleet of this age such as Minegumo class and Yamagumo class 2 In contrast to their anti submarine capability the anti aircraft fire power was weakened compared to the preceding class The foredeck gun was a Type 68 3 50 caliber twin cannon controlled by a FCS 1B Gun Fire Control System which was standard anti air weapon system in the JMSDF of this age But the afterdeck gun was the old fashioned Bofors 40 mm L 60 twin cannon lacking the anti ship missile defense ASMD capability The final batch of this class was planned to equipped with the new Oerlikon 35 mm twin cannon but this plan was frustrated because of the budgetary consideration 2 Ships in the class editHull no Name Laid down Launched Commissioned DecommissionedDE 215 Chikugo December 9 1968 January 13 1970 July 31 1971 April 15 1996DE 216 Ayase December 5 1969 September 16 1970 May 20 1971 August 1 1996DE 217 Mikuma March 17 1970 February 16 1971 August 26 1971 July 8 1997DE 218 Tokachi December 11 1970 November 25 1971 May 17 1972 April 15 1998DE 219 Iwase August 6 1971 June 29 1972 December 12 1972 October 16 1998DE 220 Chitose October 7 1971 January 25 1973 August 31 1973 April 13 1999DE 221 Niyodo September 20 1972 August 28 1973 February 28 1974 June 24 1999DE 222 Teshio July 11 1973 May 29 1974 January 10 1975 June 27 2000DE 223 Yoshino September 28 1973 August 22 1974 February 6 1975 May 15 2001DE 224 Kumano May 29 1974 February 24 1975 November 19 1975 May 18 2001DE 225 Noshiro January 27 1976 December 23 1976 June 30 1977 March 13 2003References edit Norman Friedman 2006 The Naval Institute guide to world naval weapon systems Naval Institute Press ISBN 9781557502629 a b Abe Yasuo May 2003 Looking back on Chikugo class escort vessels Ships of the World in Japanese 610 Kaijinn sha 92 97 Retrieved from https en wikipedia org w index php title Chikugo class destroyer escort amp oldid 1079971160, wikipedia, wiki, book, books, library,
