Why museum-ship status may require extensive physical changes

Could a warship be preserved under private ownership by designating it as a museum?

Possibly, but the physical and legal measures could be extensive; the Japanese example involved substantial concrete.

Moving a retired warship into private ownership or museum status can require extensive physical changes. A Japanese example associated with Tsushima involved substantial use of concrete, showing how far a preservation arrangement might have to go. The vessel and governing rule are not named, so the passage offers a caution about preservation requirements rather than a complete case history.