However, in their case their engines and boilers required them to be so big that three masts and a square rig was necessarily uniform.
Ngoko, kwimeko yabo ii-injini zabo kunye nezibilisi zafuna okokuba bona babebakhulu ukuze iimasti ezintathu kunye noxhotyiso olusikwere kube yimfuneko okokuba lube yi-unifom.