To provide a nuclear ship with a durability greater than the durabilities of nuclear aircraft carriers navigating in the world, enabling it to withstand a fuel-filled jet plane crash so as to be accepted by people in every country, because U.S. NRC is seeking for a nuclear power station withstanding the fuel-filled jet plane crash.

The nuclear ship has a flat deck board 102 for loading and unloading of freight by airplane. This ship is provided with a floating body 105 in the space formed by a floating mantle 106 and the ship body covered with a ship wall 101 and the flat deck board 102. This ship shallowly submerges by adjusting the pressure of pressure adjustable compressed air in the space above, and by controlling the angle of the underwater cruise wing 103 equipped to the floating mantle 106.

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