Notoro-class oiler

Class overview
Tsurumi in 1922
Name:	Notoro class later Erimo class
Builders:	Kawasaki Shipbuilding Corporation Yokohama Dock Company Ōsaka Iron Works
Operators:	Imperial Japanese Navy
Preceded by:	Noma
Succeeded by:	Kamoi
Cost:	1,500,000 JPY
Built:	1919–1922
In commission:	1920–1945
Planned:	7
Completed:	7
Lost:	6
General characteristics
Type:	Oiler
Displacement:	15,400 long tons (15,647 t) standing
Length:	138.68 m (455 ft 0 in) p/p
Beam:	17.68 m (58 ft 0 in)
Draught:	8.08 m (26 ft 6 in)
Propulsion:	Irō 1 × triple expansion reciprocating engine 4 × Kampon water tube boilers single shaft, 3,750 shp (2,800 kW) All others 1 × triple expansion reciprocating engine 4 × Scotch boilers single shaft, 3,750 shp (2,800 kW)
Speed:	12 knots (22 km/h; 14 mph)
Capacity:	8,000 tons of fuel oil
Complement:	Irō: 157 All others: 142
Armament:	Notoro, Shiretoko, Erimo and Irō 2 × 120 mm (4.7 in) L/45 naval guns 2 × 76.2 mm (3 in) L/40 AA guns Sata, Tsurumi and Shiriya 2 × 140 mm (5.5 in) L/50 naval guns 2 × 76.2 mm (3 in) L/40 AA guns

The Notoro-class oilers (能登呂型給油艦, Notoro-gata kyūyukan) were a class of seven oilers of the Imperial Japanese Navy (IJN), serving during the 1920s and World War II. They were also called the Erimo-class oilers (襟裳型給油艦, Erimo-gata kyūyukan), after Notoro and Shiretoko were converted to other ship types.

Construction

They were built under pre-Eight-eight fleet plans, the Eight-four fleet plan and the Eight-six fleet plan. All ships of the class were named after capes in Japan (e.g. Irō is a cape at the southern tip of Izu Peninsula).

Service history

The class devoted themselves to importing crude oil from North America and Southeast Asia. The Notoro and the Ondo classes made 388 voyages carrying a total of 3,000,000 tons of oil up to 1941.

During World War II they were not able to accompany the fleet, due to their low speed. Instead they were engaged in a supply duties at naval bases.

Ships in class

Ship	Builder	Laid down	Launched	Completed	Fate
Notoro (能登呂)	Kawasaki-Kōbe Shipyard	24 November 1919	17 July 1920	20 September 1920	Converted to seaplane tender, 1 June 1934. Scuttled off Singapore, 12 January 1947.
Shiretoko (知床)	Kawasaki-Kōbe Shipyard	24 November 1919	3 May 1920	10 August 1920	Converted to collier, 1928. Later re-converted to munition ship. Sunk by air raid at Singapore, 1 February 1945.
Erimo (襟裳)	Kawasaki-Kōbe Shipyard	3 May 1920	28 October 1920	16 December 1920	Heavily damaged by Dutch submarine O 15, 4 March 1942 and grounded at Belitung.
Sata (佐多)	Yokohama Dock Company	6 March 1920	28 October 1920	24 February 1921	Converted to submarine rescue ship in 1938. Sunk during Operation Desecrate One at Palau, 31 March 1944.
Tsurumi (鶴見)	Ōsaka Iron Works, Sakurajima Factory	10 March 1921	29 September 1921	14 March 1922	Sunk by USS Cero south of Davao 05°53′N 125°41′E / 5.883°N 125.683°E / 5.883; 125.683, 5 August 1944.
Shiriya (尻矢)	Yokohama Dock Company	7 April 1921	29 September 1921	8 February 1922	Sunk by USS Trigger northeast of Keelung 26°23′N 122°40′E / 26.383°N 122.667°E / 26.383; 122.667, 22 September 1943.
Irō (石廊)	Ōsaka Iron Works, Sakurajima Factory	2 September 1921	5 August 1922	30 October 1922	Heavily damaged by air raid at Palau, 31 March 1944. Sank, 17 April 1944.

Photo

Notoro as seaplane tender on 28 May 1943 at Seletar
Shiretoko as collier in 1933
Erimo in 1938
Sata in 1921
Shiriya on 28 April 1938 at Yokosuka

Bibliography

Ships of the World special issue Vol.47, Auxiliary Vessels of the Imperial Japanese Navy, "Kaijinsha". (Japan), March 1997
The Maru Special, Japanese Naval Vessels No.34 Japanese auxiliary vessels, "Ushio Shobō". (Japan), December 1979
Senshi Sōsho Vol.31, Naval armaments and war preparation (1), "Until November 1941", Asagumo Simbun (Japan), November 1969

Japanese auxiliary ship classes of World War II

Colliers and oilers	Notoro Ondo Sunosaki Ashizuri Kazahaya^S Hayasui^S Hario^S Muroto Teiyō Maru^S Ōse (ex-Dutch tanker Genota)^SC

Food supply ships	Mamiya^S Nosaki^S Kinesaki Irako^S Kurasaki^SC

Landing ships	No.1 No.101 Shinshū Maru^S (Army) SS (Army)

Armed merchant cruisers	Aikoku Maru^S Kongō Maru^S Noshiro Maru^S

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 HMS Waglan)^C Aux. No.1 Aux. No.101 (ex-HNLMS DEFG-class) Aux. No.104 (ex-HNLMS DEFG-class)

Patrol boats	No.1^C No.31^C No.46^SC 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)^SCI No.107 (ex-USS Genesee)^SC No.109 (ex-Dutch East Indies Fazant)^SC Aux. No.1

Repair ships	Asahi^SC Akashi^S Hayase (ex-Chinese passenger Chin Kiang)^SC Hitonose (ex-ROCN Min Sheng)^SC

Seaplane tenders	Notoro Kamoi^SC Chitose Mizuho^S Nisshin^S Akitsushima^S Kamikawa Maru

Submarine chasers	No.1 No.3^S 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 class)^C Aux. No.117 (ex-HNLMS Bantam)^C Aux. No.251 Aux. No.253^S

Submarine tenders	Komahashi^SC Jingei Taigei^S

Survey ships	Tsukushi^S Katsuriki^SC Hakusa (ex-China customs Fu Hsing)^SC

Target ships	Settsu^SC Yakaze^SC Hakachi^S Ōhama^S

Training ships	Fuji^SC Shikishima^SC Asama^SC Azuma^SC Kasuga^SC 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

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