- No.1 class patrol boat (1940)
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Class overview Name: No.1-class patrol boat Builders: Yokosuka Naval Arsenal Operators: 
Imperial Japanese NavySucceeded by: Matsu-class destroyer
No.1-class landing shipBuilt: 1940 In commission: 1940 – 1945 Planned: 4 Completed: 2 Cancelled: 2 (replaced to 4 × No.31-class) Lost: 2 General characteristics Type: Patrol boat Displacement: 1,270 long tons (1,290 t) standard Length: April 1940
102.57 m (336 ft 6 in) overallBeam: 8.92 m (29 ft 3 in) Propulsion: 2 × Mitsubishi-Parsons geared turbines
2 × Kampon water tube boilers
2 shafts, 10,000 shpSpeed: 22.0 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
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 crafts and 250 troops,
or 42 × depth chargesThe 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.
Contents
Background
- In 1939, the IJN was liberated from London Naval Treaty, and they built a lot of Kagerō-class destroyers. On the other hand, aging of the Minekaze-class destroyers were serious. Their boilers were worn down very much because they were destroyers. Some Minekaze-class were not able to show 30 knots speed. The Navy General Staff made the Confidential Document No.456. It was an order to rebuilt them into patrol boat about four of Minekaze-class destroyers and six of Momi-class destroyers. The IJN chose Shimakaze and Nadakaze among Minekaze-class.
Rebuilt
- Shimakaze and Nadakaze were sent to Yokosuka Naval Arsenal for rebuilt. 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 enclosed well deck. Furthermore, slope for Daihatsu was installed to their 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 No.1 [2] (ex.-Shimakaze) 15 November 1920 First quarter of 1940 at Yokosuka Naval Arsenal Sunk by USS Guardfish at west off Kavieng 02°51′S 149°43′E / 2.85°S 149.717°E on 12 January 1943. Decommissioned on 10 February 1942. No.2 (ex.-Nadakaze) 30 September 1921 First quarter of 1940 at Yokosuka Naval Arsenal Sunk by HMS Stubborn at Lombok Strait 07°07′S 115°40′E / 7.117°S 115.667°E on 25 July 1945. Decommissioned on 30 September 1945. See also
Footnotes
- ^ About the time of their entering a dock, correct historical materials were not left.
- ^ Patrol boat No.1 (第一号哨戒艇 Dai 1 Gō Shōkaitei). The same shall apply hereinafter.
Bibliography
- "Rekishi Gunzō". http://rekigun.net/., History of Pacific War Vol.62 Ships of the Imperial Japanese Forces, Gakken (Japan), January 2008, ISBN 987-4-05-605008-0
- Ships of the World special issue Vol.45, Escort Vessels of the Imperial Japanese Navy, "Kaijinsha". http://www.ships-net.co.jp/., (Japan), February 1996
- The Maru Special, Japanese Naval Vessels No.49, Japanese submarine chasers and patrol boats, "Ushio Shobō". http://www.kojinsha.co.jp/. (Japan), March 1981
Japanese auxiliary ship classes of World War IICargo ships Colliers and Oilers Ōtomari S
Landing ships No.1 · No.101 · Shinshū Maru S (Army) · SS (Army)
Minelayers and Cable layer Tokiwa SC · Itsukushima S · Yaeyama S · Okinoshima S · Tsugaru S · Minoo SC · Shirataka S · Hatsutaka · Tsubame · Natsushima (1933) · Sokuten (1938) · Hirashima · Ajiro S · 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 Waglan) C · Aux. No.1 · Aux. No.101 (ex-HNLMS DEFG class) · Aux. No.104 (ex-HNLMS DEFG class)
Patrol boats Seaplane tenders Submarine chasers
Survey ships Target ships Training ships Fuji SC · Shikishima SC · Asama SC · Azuma SC · Kasuga SC
S - Single ship of class • C - Converted to ship type • I - Incomplete until the end of war Categories:- World War II naval ships of Japan
- Minekaze class destroyers
- Landing craft
- Small combat vessel classes
- 1920s ships
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