The was a class of two support ships 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 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...

.

Construction

In 1939, the IJN planned two support ship classes to help their aircraft carriers. One was the 8,000 ton Ashizuri class

Ashizuri class combat support ship

The was a class of two support ships of the Imperial Japanese Navy , serving during World War II.-Construction:In 1940, the IJN planned two support ship classes to help their aircraft carriers. One was the 4,500 ton Sunosaki class, the other one the 8,000 ton Ashizuri class...

, the other one the 4,500 ton Sunosaki class. The Sunosaki was planned to support for two medium-sized carriers (Sōryū

Japanese aircraft carrier Soryu

was an aircraft carrier of the Imperial Japanese Navy. During the Second World War, she took part in the attack on Pearl Harbor, Wake Island, Port Darwin and raids in the Indian Ocean before being sunk at the Battle of Midway.-Design:...

 and Hiryū

Japanese aircraft carrier Hiryu

was a modified Sōryū-class aircraft carrier of the Imperial Japanese Navy. She was one of the carriers that began the Pacific War with the attack on Pearl Harbor...

) in the battlefield. The thought is the same as USS Sacramento

Sacramento class fast combat support ship

The Sacramento class fast combat support ships were a class of four United States Navy supply ships used to refuel, rearm, and restock ships in the United States Navy in both the Atlantic and Pacific Oceans.-History:...

.

Service

They cannot support for the carrier task force, because their commissions were delay. They sail to and from the Japanese mainland to Southeast Asia

Southeast Asia

Southeast Asia, South-East Asia, South East Asia or Southeastern Asia is a subregion of Asia, consisting of the countries that are geographically south of China, east of India, west of New Guinea and north of Australia. The region lies on the intersection of geological plates, with heavy seismic...

. And they were lost without participating in the naval battle.

Ships in class

Ship #	Ship	Builder	Laid down	Launched	Completed	Fate
103		Mitsubishi Heavy Industries, Yokohama Shipyard	25-03-1942	28-12-1942	15-05-1943	Burned by air raid at Manila Bay Manila Bay Manila Bay is a natural harbor which serves the Port of Manila , in the Philippines.The bay is considered to be one of the best natural harbors in Southeast Asia and one of the finest in the world...  21-09-1944. Scuttled 04-10-1944.
233		Mitsubishi Heavy Industries, Yokohama Shipyard	16-07-1942	03-05-1943	02-09-1943	Sunk by USS Puffer USS Puffer (SS-268) USS Puffer , a Gato-class submarine, was the first ship of the United States Navy to be named for the puffer, a fish which inflates its body with air....  at Sulu Sea Sulu Sea The Sulu Sea is a body of water in the southwestern area of the Philippines, separated from the South China Sea in the northwest by Palawan and from the Celebes Sea in the southeast by the Sulu Archipelago. Borneo is found to the southwest and Visayas to the northeast.Sulu Sea contains a number of... 06°33′N 122°55′E 05-06-1944.
234						Cancelled on 05-05-1944.
235
236	or