Preliminary designs for Japanese nuclear-propelled tankers between 1955-1958

An item reported that the Japanese Ministry of Transportation was responsible for nuclear ship development and operation policy. Within the Secretariat was a Nuclear Energy Liaison Conference established which inclused several subcommissions like one for Nuclear Ship and a second one for Nuclear Ship Navigation. After the First International Conference on the Peaceful Uses of Atomic Energy held at Geneva, Switzerland in September 1955 proposed the Shipbuilding Technics Council to establish an organization for this purpose. The Minister founded then the Atomic Marine Propulsion Panel. In the next three years the Panel came with four preliminary designs for nuclear-propelled tankers, namely

-80,000 tons deadweight, 40,000 shp horsepower, pressurized-water reactor

-40,000 tons deadweight, 20,000 shp horsepower, pressurized-water reactor

-40,000 tons deadweight, 20,000 shp horsepower, boiling water-reactor

-40,000 tons, deadweight,20,000 shp horsepower, gas-cooled reactor

Source

A.W. Kramer. Nuclear propulsion for merchant ships. US Atomic Energy Commission, 1962.