The Gosei Maru was built in 1937, by the Tsuromi Iron Works Dockyard as a medium coastal freighter for the Koun Kisen Line. Her lines are unconventional, but were adopted as the Standard D Freighter, built in quantity during the war.
The Japanese Navy took control and utilized her as a supply ship for Sixth Fleet submarines. She carried torpedoes and depth charges. In 1976 many of the torpedo bodies were destroyed to reduce the chance of unpredictable explosions and danger to divers.
During the “Hailstone” attack, Gosei Maru was attacked by aircraft from the light carrier Monterey and sunk by a torpedo. She now lies on a slope with her stern at 8 fsw and her bow in 100 fsw.
- Gosei Maru
- Displacement: 1,931 tons
- Length: 270 feet
- Beam: 40 feet
- Engine: 1 reciprocal steam / coal
- Max Speed: 12.7 kts.