Some Problems in Constructing Super-Large Tankers

Abstract

To construct super_large tankers, we had to replace many small building berths by one building dock and switch from constructing many ships simultaneously in a long period to constructing one or two in a short period. Thus we have developed practices such as short_period-building method, general assembly method, and pre_erection method. &&Those problems and solutions, however, may not be applicable to new yards, but proper only for existing yards such as Nagasaki, where we modified old facilities instead of constructing an entirely new yard for large vessels.