Could nuclear-powered merchant ships be practical?
Short answerPotentially, but security, docking, certification, and restricted port access create major practical constraints.
NotesNuclear power could offer an attractive merchant-ship concept, but propulsion is only part of the system. Operators would have to address terrorism risk around a civilian reactor and its fuel. Docking and repair would require specially certified facilities rather than ordinary commercial berths. The limited number of ports willing and able to accept a nuclear-powered civilian vessel would then constrain routes and commercial flexibility.