Most merchant ships have a nearly rectangular cross-section for the greater part of their length, the bottom being flat, the sides vertical, and the bilges sharply rounded; but high-speed vessels such as cruisers and destroyers have rising bottoms and less sharply rounded bilges .
Inkoliso yeenqanawa zorhwebo zinecandelo eliphantse libe luxande kwindawo enkulu yobude bazo, umphantsi ube sityaba, amacala ame nkqo, ize imiphantsi yesiqu senqanawa ibe ngqukuva kakhulu; kodwa iinqanawa ezinesantya esiphezulu ezifana neenqanawa zokonakalisa zinemiphantsi ekhukhumeleyo kwaye ayikho ngqukuva kakhulu.