No.1-class patrol boat

World War II naval ship of Japan
Minekaze, the lead ship of the class of destroyer the patrol boats were converted from.
Class overview
NameNo.1-class patrol boat
BuildersYokosuka Naval Arsenal
Operators Imperial Japanese Navy
Succeeded by
  • Matsu-class destroyer
  • No.1-class landing ship
Built1940
In commission1940 – 1945
Planned4
Completed2
Cancelled2 (replaced by 4 × No.31-class patrol boats)
Lost2
General characteristics
TypePatrol boat
Displacement1,270 long tons (1,290 t) standard
Length
  • April 1940
  • 102.57 m (336 ft 6 in) overall
Beam8.92 m (29 ft 3 in)
Propulsion
  • 2 × Mitsubishi-Parsons geared turbines
  • 2 × Kampon water tube boilers
  • 2 shafts, 10,000 shp
Speed22.0 knots (25.3 mph; 40.7 km/h)
Armament
  • April 1940
  • 3 × 120 mm (4.7 in) L/45 naval guns
  • 2 × 533 mm (21.0 in) torpedo tubes
  • 2 × 533 mm torpedoes
  • Late 1941
  • 2 × 120 mm (4.7 in) L/45 naval guns
  • 4 × Type 96 25 mm AA guns
  • 2 × depth charge throwers
  • 18 × depth charges
  • 2 × landing craft and 250 troops,
  • or 42 × depth charges

The No. 1-class patrol boat (第一号型哨戒艇,, Dai Ichi Gō-gata Shōkaitei) was a class of patrol boats of the Imperial Japanese Navy (IJN), serving during World War II. 2 vessels were converted from Minekaze-class destroyers in 1940.

Background

  • In 1939, the IJN was liberated from London Naval Treaty, and they built many Kagerō-class destroyers. On the other hand, aging of the Minekaze-class destroyers was serious. Their boilers were worn down very much because they were destroyers. Some Minekazes were not able to show 30 knots speed. The Navy General Staff made Confidential Document No.456, an order to rebuild about four Minekaze-class destroyers and six Momi-class destroyers into patrol boats. The IJN chose Shimakaze and Nadakaze among the Minekaze class.

Rebuilt

  • Shimakaze and Nadakaze were sent to Yokosuka Naval Arsenal for rebuilding. B turret, four torpedo tubes, and two boilers were removed in 1940. In this point in time, they left a feature of the destroyer.
  • Second half of 1941, the IJN rebuilt them once again for war preparations.[1] They were rebuilt to the landing craft carrier. They were removed Y turret and torpedo tubes, and the enclosed well deck. Furthermore, a slope for Daihatsu-class landing craft was installed at the stern. Well-deck ruins were able to accommodate 250 troops (for two companies of Navy Landing Force).

Service

  • 8 December 1941: Sortie for invasion of Batanes Islands. (No.1 and No.2)
  • 24 December 1941: Sortie for invasion of Lamon Bay. (No.1 and No.2)
  • 11 January 1942: Sortie for Battle of Manado. (No.1, No.2 and No.34)
  • 12 February 1942: Sortie for invasion of Makassar. (No.1 and No.2)
  • 20 February 1942: Sortie for invasion of Kupang. (No.1, No.2 and No.39)
  • (after): The IJN which finished First Phase Operations allotted them to the convoy escort operations and No.1 and No.2 were sunk by Allied submarines.

Ships in class

Ship Completed as destroyer Rebuilt completed Fate
Patrol Boat No. 1 [2]
ex-Shimakaze
15 November 1920 First quarter of 1940 at Yokosuka Naval Arsenal.
Renamed Patrol Boat No. 1 on 1 April 1940.[3]
Sunk by USS Guardfish at west off Kavieng 02°51′S 149°43′E / 2.850°S 149.717°E / -2.850; 149.717 on 12 January 1943. Decommissioned on 10 February 1943.
Patrol Boat No. 2
ex-Nadakaze
30 September 1921 First quarter of 1940 at Yokosuka Naval Arsenal.
Renamed Patrol Boat No. 2 on 1 April 1940.[3]
Sunk by HMS Stubborn at Lombok Strait 07°07′S 115°40′E / 7.117°S 115.667°E / -7.117; 115.667 on 25 July 1945. Decommissioned on 30 September 1945.

See also

Footnotes

  1. ^ About the time of their entering a dock, correct historical materials were not left.
  2. ^ 第一号哨戒艇 (Dai 1 Gō Shōkaitei). The same shall apply hereinafter.
  3. ^ a b 1 April 1940, Notice No. 72, Reclassified old destroyers to auxiliary boat. (昭和十五年四月一日 海軍大臣官房達第七十二号 舊驅逐艦ヲ特務艇籍ニ編入シ左ノ通命名ス 海軍大臣 吉田善吾), Minister's Secretariat, Ministry of the Navy.

Bibliography

  • "Rekishi Gunzō"., History of Pacific War Vol.62, "Ships of the Imperial Japanese Forces", Gakken (Japan), January 2008, ISBN 978-4-05-605008-0
  • Monthly Ships of the World, Special issue Vol.45, "Escort Vessels of the Imperial Japanese Navy", "Kaijinsha"., (Japan), February 1996
  • The Maru Special, Japanese Naval Vessels No.49, "Japanese submarine chasers and patrol boats", "Ushio Shobō". (Japan), March 1981
  • v
  • t
  • e
Minekaze-class destroyers / No. 1-class patrol boats
Minekaze class
  • Minekaze
  • Sawakaze
  • Okikaze
  • Shimakaze / Patrol Boat No. 1
  • Nadakaze / Patrol Boat No. 2
  • Yakaze
  • Hakaze
  • Shiokaze
  • Akikaze
  • Yūkaze
  • Tachikaze
  • Hokaze
Nokaze subclass
  • Nokaze
  • Namikaze
  • Numakaze
Other operators
 Republic of China Navy
  • Shen Yang (ex-Namikaze)
 Royal Navy
  • (ex-Yūkaze)
  • Preceded by: Momi class
  • Followed by: Kamikaze class
  • v
  • t
  • e
Japanese auxiliary ship classes of World War II
Colliers and oilers
  • Notoro
  • Ondo
  • Sunosaki
  • Ashizuri
  • KazahayaS
  • HayasuiS
  • HarioS
  • Muroto
  • Teiyō MaruS
  • Ōse (ex-SS Genota)SC
Food supply ships
  • MamiyaS
  • NosakiS
  • Kinesaki
  • IrakoS
  • KurasakiSC
Landing ships
  • No.1
  • No.101
  • Shinshū MaruS (Army)
  • SS (Army)
Armed merchant cruisers
  • Aikoku MaruS
  • Hōkoku MaruS
  • Kongō MaruS
  • Noshiro MaruS
Minelayers
and cable layer
  • TokiwaSC
  • ItsukushimaS
  • YaeyamaS
  • OkinoshimaS
  • TsugaruS
  • MinooSC
  • ShiratakaS
  • Hatsutaka
  • Tsubame
  • Natsushima (1933)
  • Sokuten (1938)
  • Hirashima
  • AjiroS
  • Kamishima
  • Hashima
  • Sokuten (1913)
  • Aux. No.1
  • Aux. No.101 (ex-HMS Barlight)SC
Minesweepers
  • No.1 (1923)
  • No.5 (1928)
  • No.13
  • No.17
  • No.7 (1938)
  • No.19
  • No.101 (ex-HMS Taitam and HMS Waglan)C
  • Aux. No.1
  • Aux. No.101 (ex-HNLMS DEFG-class)
  • Aux. No.104 (ex-HNLMS DEFG-class)
Patrol boats
  • No.1C
  • No.31C
  • No.46SC
  • No.101 (ex-HMS Thracian)SC
  • No.102 (ex-USS Stewart)SC
  • No.103 (ex-USS Finch)SC
  • No.104 (ex-Dutch East Indies Valk and Arend)C
  • No.105 (ex-Philippine customs Arayat)SC
  • No.106 (ex-HNLMS Banckert (1929))SCI
  • No.107 (ex-USS Genesee)SC
  • No.109 (ex-Dutch East Indies Fazant)SC
  • Aux. No.1
Repair ships
  • AsahiSC
  • AkashiS
  • Hayase (ex-Chinese passenger Chin Kiang)SC
  • Hitonose (ex-ROCN Min Sheng)SC
Seaplane tenders
  • NotoroSC
  • KamoiSC
  • Chitose
  • MizuhoS
  • NisshinS
  • AkitsushimaS
  • Kamikawa MaruC
Submarine chasers
  • No.1
  • No.3S
  • No.4
  • No.13
  • No.28
  • No.60
  • Aux. No.1
  • Aux. No.101 (ex-HNLMS Tjerimai)SC
  • Aux. No.102 (ex-HNLMS Ardjoeno class)C
  • Aux. No.103 (ex-HNLMS B1 class)C
  • Aux. No.111 (ex-HNLMS P13 or P14)SC
  • Aux. No.112 (ex-HNLMS A)C
  • Aux. No.117 (ex-HNLMS Bantam)C
  • Aux. No.251
  • Aux. No.253S
Submarine tenders
  • KomahashiSC
  • Jingei
  • TaigeiS
Survey ships
  • TsukushiS
  • KatsurikiSC
  • Hakusa (ex-China customs Fu Hsing)SC
Target ships
  • SettsuSC
  • YakazeSC
  • HakachiS
  • ŌhamaS
Training ships
  • FujiSC
  • ShikishimaSC
  • AsamaSC
  • AzumaSC
  • KasugaSC
  • Atada (ex-ROCN Yat Sen)SC
Others
  • Sōya (freighter)SC
  • Kashino (turret transporter)S
  • Ōtomari (icebreaker)S
  • Tategami (salvage tug)
  • Kasashima (salvage tug)
  • Miura (salvage tug)
  • Kaiyō No.1 (oceanographic research ship)
  • Asuka (traffic ship, ex-ROCN Yung Chien)SC
S
Single ship of class
C
Converted to ship type
I
Incomplete until the end of war