Muroto class collier
Encyclopedia
The was a class of collier of the Imperial Japanese Navy
Imperial Japanese Navy
The Imperial Japanese Navy was the navy of the Empire of Japan from 1869 until 1947, when it was dissolved following Japan's constitutional renunciation of the use of force as a means of settling international disputes...

 (IJN), serving during the 1910s and the World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

. 2 vessels were built in 1918-19 under the Eight-four fleet
Eight-eight fleet
The was a Japanese naval strategy formulated for the development of the Imperial Japanese Navy in the first quarter of the 20th century, which laid down that the Japanese navy should include eight first-class battleships and eight armoured cruisers or battlecruisers.-History and development:The...

 plan.

Background

  • In 1917, the World War I
    World War I
    World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

     be stagnant. The war that continued for a long time let a rise of the shipping and shortage of merchant ships.
  • The IJN commissioned the coal transportation duty to the steamship companies. However, it was very large amount of money. The IJN decided to build new colliers under the Eight-four fleet plan.
  • Their design was ordinary, because the IJN did not impose a special duty on them.

Service

  • In 1920s, they engaged in coal transportation duties.
  • In February 1932, the Muroto was removed the coal hold, and added the hospital ship facilities.
  • In World War II, the value of coal as fuel fell. They engaged in the goods/troop transportation duties.

Ships in class

Ship Builder Laid down Launched Completed Fate
Mitsubishi, Kōbe Shipyard 4 July 1918 23 October 1918 7 December 1918 Sunk by USS Sea Dog
USS Sea Dog (SS-401)
USS Sea Dog was a Balao-class submarine in the United States Navy. She was the first ship to be named for the dogfish, a small shark of the North Atlantic, considered destructive by fishermen....

 at north of Amami Ōshima
Amami Oshima
is a semi-tropical island in the Amami Islands, which is part of the larger Nansei Islands in Japan. Ōshima literally means big island, and it is the largest of the Amami Islands. It lies roughly halfway between the islands of Okinawa and Kyūshū. Briefly part of the Ryūkyū Kingdom, in 1624 it was...

 29°10′N 129°44′E on 22 October 1944.
Mitsubishi, Kōbe Shipyard 16 July 1918 3 February 1919 31 March 1919 Sunk during the Battle of the Bismarck Sea
Battle of the Bismarck Sea
The Battle of the Bismarck Sea took place in the South West Pacific Area during World War II. During the course of the battle, aircraft of the U.S. 5th Air Force and the Royal Australian Air Force attacked a Japanese convoy that was carrying troops to Lae, New Guinea...

on 3 March 1943.
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