The was a class of two support ships of the Imperial Japanese Navy (IJN), 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 , the other one the 8,000 ton Ashizuri class. The Ashizuri was planned to support for two large-sized carriers (, and ) in the battlefield. The thought is the same as USS Sacramento.
Service Not joining the IJN till mid-1943 when the Japanese navy was well and truly on the back foot, the ships participated in convoy duties delivering fuel oil around Southeast Asia. Their top speed of 16 knots meant that they would not have been capable of keeping up with the fast carrier battle groups.
Ashizuri was sunk by the on 5 June 1944, and Shioya was lost to three days later.
Ships in class Ship # Ship Builder Laid down Launched Completed Fate 219 Mitsubishi Heavy Industries, Nagasaki Shipyard 08-07-1941 16-05-1942 30-01-1943 Sunk by at Sulu Sea 05-06-1944. 220 Mitsubishi Heavy Industries, Nagasaki Shipyard 01-04-1942 08-03-1943 09-11-1943 Sunk by at west of Manado 08-06-1944.
References , History of Pacific War Vol.62 "Ships of The Imperial Japanese Forces, Gakken (Japan), January 2008, Ships of the World special issue Vol.47, Auxiliary Vessels of the Imperial Japanese Navy, , (Japan), March 1997