Japanese submarine chaser Cha-187


Cha-187 or No. 187 (Japanese: 第百八十七號驅潜特務艇) was a No.1-class auxiliary submarine chaser of the Imperial Japanese Navy that served during World War II and with Japan during the post-war period.

History
Imperial Japanese Navy
NameCha-187
BuilderShikoku Shipyard Industry Co., Ltd, Takamatsu
Yard number2037
Laid down9 November 1943
Launched26 April 1944
Completed3 June 1944
Commissioned3 June 1944
Decommissioned30 November 1945
Fatemobilized by the Allied occupation forces, 1 December 1945
Allied Occupation Force
Acquired1 December 1945
Decommissioned1 August 1947
Fatetransferred to Ministry of Transportation, 28 August 1947
Ministry of Transportation
Acquired28 August 1947
Fatetransferred to Japan Maritime Safety Agency, 1 May 1948
Japan Maritime Safety Agency
Acquired1 May 1948
RenamedPatrol Vessel Yamadori (PB-04), 20 October 1949
Patrol Vessel Yamadori (PS-04), 1 July 1950
Patrol Vessel Yamadori (PS-124), 1 July 1951
Stricken28 February 1955
Fateunknown
General characteristics
Class and typeNo.1-class submarine chaser
Displacement130 long tons (132 t) standard[1]
Length29.20 m (95 ft 10 in) overall
Beam5.65 m (18 ft 6 in)
Draught1.97 m (6 ft 6 in)
Propulsion
  • 1 × intermediate diesel
  • shingle shaft, 400 bhp (300 kW)
Speed11.0 knots (20.4 km/h; 12.7 mph)
Range1,000 nmi (1,900 km; 1,200 mi) at 10.0 kn (18.5 km/h; 11.5 mph)
Complement32
Armament
  • 1 × 13.2 mm machine gun
  • 22 × depth charges
  • 1 × dunking hydrophone
  • 1 × simple sonar

History

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Her construction was authorized under the Maru Sen Programme (Ship # 2001–2100). She was laid down on 31 January 1944 as ship 2037 at the Shikoku Shipyard Industry Co., Ltd shipyard in Takamatsu[1] and launched on 26 April 1944.[2]

She was completed and commissioned on 3 June 1944,[2] fitted with armaments at the Kure Naval Arsenal, and assigned to the Saeki Defense squadron, Kure Defense Force, Kure Naval District under captain Yoshihiko Higashiide (東出 義彦)[2] She conducted escort duty between Oshima and Miike (jp:三池, now part of Ōmuta City); and then proceeded to Yamakawa where she was drydocked on 13 November 1944.[2] In November 1944, ensign Hajime Katada (堅田 肇) was placed in command; and in December 1944, he was replaced by ensign Kanichi Kamihara (神原 勘一).[2] In February 1945, she returned to Kure for further repair and on 10 June 1945, she was assigned to 81st Squadron, Kure Defense Force.[2] Cha-187 survived the war and was decommissioned on 30 November 1945.[2][3]

On 1 December 1945, she was enrolled as a minesweeper by the occupation forces,[2] one of 269 Japanese ships that served as a minesweeper under the Allied forces after the war.[4] She conducted minesweeping operations based out of Kure and later Otake.[2] On 1 August 1947, she was demobilized[2] and on 28 August 1947, she was released to the Ministry of Transportation.[2]

On 1 May 1948, she was assigned to the Japan Maritime Safety Agency, a sub-agency of the Ministry of Transportation, and designated on 20 October 1949 as patrol vessel Yamadori (やまどり) (PB-04).[2] On 1 July 1950, she was re-designated as patrol vessel Yamadori (PS-04).[2] On 1 July 1951, she was re-designated as patrol vessel Yamadori (PS-124).[2] She was delisted on 28 February 1955.[2]

References

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  1. ^ a b Toda, Gengoro S. (21 September 2019). "驅潜特務艇 (Cha - Stats)". Imperial Japanese Navy - Tokusetsukansen (in Japanese).
  2. ^ a b c d e f g h i j k l m n o Toda, Gengoro S. "第百八十七號驅潜特務艇の艦歴 (No. 187 submarine chaser - Ship History)". Imperial Japanese Navy -Tokusetsu Kansen (in Japanese).
  3. ^ Japanese Naval Vessels at the End of the War (PDF). 25 April 1947. pp. 113–115.
  4. ^ Hackett, Bob; Cundall, Peter; Casse, Gilbert (2012). "Kakyakusen: IJN Escort CD-76: Tabular Record of Movement". combinedfleet.com. Retrieved 30 March 2020.