Muroto-class collier

Class overview
Muroto in 1932
Name:	Muroto-class collier
Builders:	Mitsubishi Heavy Industries
Operators:	Imperial Japanese Navy
Built:	1918 – 1919
In commission:	1918 – 1944
Planned:	2
Completed:	2
Lost:	2
General characteristics
Type:	Collier
Displacement:	8,215 long tons (8,347 t) standard 8,750 long tons (8,890 t) standing
Length:	105.16 m (345 ft 0 in) Lpp
Beam:	15.24 m (50 ft 0 in)
Draught:	7.06 m (23 ft 2 in)
Propulsion:	1 × three expansion stages reciprocating engine 2 × scotch boilers single shaft, 2,500 shp 1930 3 × Miyahara model water tube boilers
Speed:	12.5 knots (14.4 mph; 23.2 km/h) 1930 14.0 knots (16.1 mph; 25.9 km/h)
Capacity:	6,000 tons coal
Complement:	124
Armament:	1918 2 × 120 mm (4.7 in) L/45 naval guns 1932 2 × 76.2 mm (3.00 in) L/40 AA guns

The Muroto-class colliers (室戸型給炭艦,, Muroto-gata Kyūtankan) were a class of collier of the Imperial Japanese Navy (IJN), serving from roughly the end of World War I into World War II. Two vessels were built in 1918-19 under the Eight-four fleet plan.

Background

In 1917, World War I was stagnant. The lengthy war led to an increase in shipping and a shortage of merchant ships.
The IJN utilized steamship companies to perform coal transportation duties. However, this expedient was very costly. The IJN decided to build new colliers under the Eight-four fleet plan.
Their design was ordinary, because the IJN did not impose any special requirements on them.

Service

In the 1920s, they engaged in coal transportation duties.
In February 1932, the Muroto was remodeled, becoming an auxiliary hospital ship. She was refitted as a supply ship in 1941.
In World War II, the value of coal as fuel fell. The ships engaged in transporting goods and troops.

Ships in class

Ship	Builder	Laid down	Launched	Completed	Fate
Muroto (室戸)	Mitsubishi, Kōbe Shipyard	4 July 1918	23 October 1918	7 December 1918	Sunk by USS Sea Dog north of Amami Ōshima 29°10′N 129°44′E / 29.167°N 129.733°E / 29.167; 129.733 on 22 October 1944.
Noshima (野島)^[1]	Mitsubishi, Kōbe Shipyard	16 July 1918	3 February 1919	31 March 1919	Sunk during the Battle of the Bismarck Sea on 3 March 1943.

Footnotes

↑ 15 December 1917, Administrative order No. 147, Named one transport vessel., Minister's Secretariat, Ministry of the Navy of Japan.

Bibliography

Monthly 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
Series 100 year histories from Meiji Era, Vol. 180, Histories of Naval organizations #8, Author: Ministry of the Navy, original plot in January 1940, reprinted in October 1971
IJN Nojima: Tabular Record of Movement, <http://www.combinedfleet.com/NojimaS_t.htm>
IJN Muroto: Tabular Record of Movement, <http://www.combinedfleet.com/Muroto_t.htm>

Noshima in 1935

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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