It is apparent from various investigations that a submarine cargo ship will be economically viable only if it has a displacement of 100,000 m³ and upwards.
Icacile kuphengululo oluninzi ukuba inkwili yenqanawa yokuthutha ingaphila ngoqoqosho ukuba inoshenxiso lwewaka elinye lezikwimitha ukubheka phezulu.