Hiburi-class escort ship

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IJN escort vessel SHONAN in 1944.jpg
Daitō or Shōnan[1]
Class overview
Name: Hiburi class escort ship
Builders: Hitachi Zōsen Corporation
Operators:
Preceded by: Mikura class
Succeeded by: Ukuru class
Cost:
Built: 1944–1945
In commission: 1944–1990
Planned: 11 (converted from 3 of the Mikura class, and 8 of the Ukuru class)
Completed: 9
Lost: 5
Retired: 4
General characteristics
Displacement: 940 long tons (955 t) standard
Length: 78.77 m (258 ft 5 in) overall
Beam: 9.10 m (29 ft 10 in)
Draught: 3.06 m (10 ft 0 in)
Propulsion:
  • 2 × Kampon Mk.22 Model 10 diesels
  • 2 shafts, 4,200 bhp
Speed: 19.5 knots (22.4 mph; 36.1 km/h)
Range: 5,000 nmi (9,300 km) at 16 kn (18 mph; 30 km/h)
Complement: 150
Armament:
  • Hiburi, June 1944
  • 3 × 120 mm (4.7 in) L/45 AA guns
  • 6 × Type 96 25 mm AA guns
  • 120 × Type 95 depth charges
  • 2 × Type 94 depth charge projectors
  • 2 × depth charge throwers
  • 1 × 22-Gō surface search radar
  • 1 × Type 93 active sonar
  • 1 × Type 93 hydrophone
  • 2 × Paravanes
  • Shisaka, 1945
  • 3 × 120 mm (4.7 in) L/45 AA guns
  • 16 × Type 96 25 mm AA guns
  • 120 × Type 2 depth charges
  • 3 × Type 94 depth charge projectors
  • 2 × depth charge throwers
  • 1 × Type 3 81 mm mortar
  • 1 × 22-Gō surface search radar
  • 1 × 13-Gō early warning radar
  • 2 × Type 3 active sonars
  • 1 × Type 93 hydrophone

The Hiburi class escort ship (日振型海防艦, Hiburi-gata Kaibōkan?) was a sub class of the Mikura class escort ships of the Imperial Japanese Navy (IJN), serving during and after World War II. [2]

Background

Design

  • The Navy Technical Department (Kampon) used the Ukuru's basic designs for the new drawings. It was a chimera of Mikura and Ukuru classes.
  • The new drawings had the following characteristic.
    • Armaments and under waterline designs were same as Mikura.
    • Everything else was same as in the Ukuru.
  • The Kampon estimated man-hours for building will be between 42,000 to 40,000.[3]
  • The new drawing was sent to the Hitachi Zōsen Corporation, Sakurajima Shipyard. The Mikura class and the Ukuru class that had not been started were converted to the Hiburi class. The Hitachi Zōsen build all of the Hiburi class vessels.[4]

Ships in class

Ship # Ship Laid down Launched Completed Fate
328 Hiburi (日振?) 03-01-1944 10-04-1944 27-06-1944 Sunk by USS Harder at west of Manila, 22-08-1944.
333 Daitō (大東?) 23-02-1944 19-05-1944 07-08-1944 Sunk by naval mine at Tsushima Strait, 16-11-1945.
339 Shōnan (昭南?) 23-02-1944 24-06-1944 13-07-1944 Sunk by USS Hoe at south of Hainan Island, 25-02-1945.
5252 Kume (久米?) 26-05-1944 15-08-1944 25-09-1944 Sunk by USS Spadefish at Yellow Sea Lua error in package.lua at line 80: module 'strict' not found., 28-01-1945.
5254 Ikuna (生名?) 30-06-1944 04-09-1944 15-10-1944 Decommissioned on 30-11-1945. Transferred to Meteorological Agency 26-12-1947, and renamed Ikuna-maru. Transferred to Maritime Safety Agency 01-01-1949, and renamed Ojika (PS-102). Decommissioned on 25-05-1963.
5257 Shisaka (四阪?) 21-08-1944 31-10-1944 15-12-1944 Decommissioned on 15-09-1945. Surrendered to Republic of China on 06-07-1947, and renamed Huian. Escape to People's Liberation Army 23-04-1949. Sunk by aircraft at Yanziji, 28-04-1949. Repairs were completed on 24-12-1953, and given the pennant number 218. Decommissioned in 1990.
5259 Sakito (崎戸?) 07-09-1944 29-11-1944 10-01-1945 Decommissioned on 20-11-1945. Scrapped January 1947.
5263 Mokuto (目斗?) 05-11-1944 07-01-1945 19-02-1945 Sunk by naval mine at Kanmon Straits, 04-04-1945.
5264 Habuto (波太?) 03-12-1944 28-02-1945 07-04-1945 Decommissioned on 23-10-1945. Surrendered to United Kingdom on 16-07-1947, later scrapped.
5265 Ōtsu (大津?) 12-01-1945 10-05-1945 Not completed until the end of the war (95%). Scrapped on 25-03-1948.
5266 Tomoshiri (友知?)[5] 05-03-1945 Not completed until the end of the war (20%). Scrapped on 23-10-1947.

Appendix

  • Classification of the Kaibōkan classes in IJN official documents
    • The Shimushu, Etorofu, Mikura, Hiburi and Ukuru were classed in the Shimushu class.
    • The IJN changed their classification on 5 June 1944, because the shipyards and commanders were confused.
    • The Escort ship Type-B and Modified Type-B were combined to the Escort ship Type-A, and Type-Bs became extinct thereby.
Before 5 June 1944
>>
 And after 5 June 1944
Plan names Official class names Common class names Plan name Official class names Common class names
Type-A Shimushu class Shimushu class Type-A Shimushu class Shimushu class
Etorofu class Etorofu class
Type-B Mikura class Mikura class Mikura class
Hiburi class Hiburi class
Modified Type-B Ukuru class Ukuru class Ukuru class
Type-C No.1 class No.1 class Type-C No.1 class No.1 class
Type-D No.2 class No.2 class Type-D No.2 class No.2 class

Photos

(changes of the equipments, and under waterline designs)

  • Ikuna in October 1944.

  • Shisaka in December 1944.

  • Habuto in April 1945.

  • Ōtsu in 1945.

See also

Footnotes

  1. ↑ The vessel on the photograph has been identified as two different vessels.
    First option: Daitō in August 1944, by Ships of the World special issue Vol.45, Escort Vessels of the Imperial Japanese Navy.
    Second option: Shōnan in July 1944, by the Yamato Museum.
  2. ↑ The 11 vessels described in this article are classified to the Ukuru class escort ship in many books, because the Hiburi class closely resembles the Ukuru class. The IJN's official documents, however, call them the Mikura class.
  3. ↑ This value was reduced to around 35,000 man-hours by an effort of the shipyard.
  4. ↑ Therefore Hitachi Zōsen did not participate in building of the Ukuru class.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.

Bibliography

  • Lua error in package.lua at line 80: module 'strict' not found., History of Pacific War Vol.51, The truth histories of the Imperial Japanese Vessels Part.2, Gakken (Japan), June 2002, ISBN 4-05-602780-3
  • Ships of the World special issue Vol.45, Escort Vessels of the Imperial Japanese Navy, Lua error in package.lua at line 80: module 'strict' not found., (Japan), February 1996
  • Model Art Extra No.340, Drawings of Imperial Japanese Naval Vessels Part-1, Lua error in package.lua at line 80: module 'strict' not found. (Japan), October 1989
  • The Maru Special, Japanese Naval Vessels No.28, Japanese escort ships, Lua error in package.lua at line 80: module 'strict' not found. (Japan), June 1979
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