The hull of a ship must be strong enough to withstand all the stresses imposed upon it by encountering heavy seas, or by resting on the blocks in a dry dock; it must also be sufficiently strong to withstand damage in the event of collision or grounding .
Isiqu senqanawa kumele somelele ngokwaneleyo ukuze sikwazi ukumelana nalo lonke uxinzelelo oluthi lwenzeke kuso ngenxa yolwandle olulwayo, okanye ngokungqubeka kwilitye eludongeni lonxweme, kwaye kumele yomelele ngokwaneleyo ukuze ikwazi ukumelana nokungqubana nanye okanye ukuzikiswa.