Two stout lifelines rove as whips through blocks at the head of each davit or derrick.
Intambo ezimbini zokusindisa abantu engozini yokutshona ezomeleleyo zibhadula ngengemithandelo igqitha kwiziqobo kwintloko yesilenge esiphezu kwenqanawa esihlisa iphenyona ngasinye okanye isilinge.