Tonan Maru No. 2 Class Auxiliary Oiler

Ex-whale oil factory ship TONAN MARU No. 2 was torpedoed and sunk in the East China Sea by an American submarine in August 1944. Sister-ship TONAN MARU No. 3 was sunk by Task Force 58's aircraft at Truk Lagoon in Operation "Hailstone" in February 1944.

Builder and
Year Completed:
Osaka Iron Works
Gross tonnage: 19,200-tons (nominal).
Dimensions: 534.8' x 74' x 36'
Propulsion: Triple-expansion engines & L.P. turbines, 7,000 IHP (TM2), 6,000 IHP (TM3), two shafts, 13.3 knots (TM2) 14.1 knots (TM3) maximum speed.
Oil Cargo Capacity: 169,425 barrels @ 42 gals/barrel
or 23,114-tons of crude oil
@7.33 barrels per metric ton
Armament: 2 x 4-inch, MGs, DCs