1B Type Tanker conversion - Class

(SHOYU MARU drawing Peter Cundall collection)

SHOYU MARU was laid down in 41 as a 1B Type cargo ship and converted on stocks to an emergency tanker completed in 42 for Matsuoka Kisen K.K., Fuchu. Requisitioned by the IJN in Dec 42 as general requisitioned transport and subsequently general requisitioned tanker, she was torpedoed and sunk by USN submarine in Jan 44. A sister, SHOUN MARU, was also built for the same owner and served as an auxiliary transport. She was torpedoed and sunk by USN submarine in Jun 44.

Builder and Year Completed: Tamano. Mitsui Zosen K.K.
Gross tonnage: 4,408-tons.
Dimensions: 371.1' (Lpp) x 51.8' x 29.5'
Propulsion: One reciprocating steam engine, one shaft, 2370 nhp.
Speed: Unknown.
Armament: Unknown