In conjunction with large heeling tanks this form of midship section is designed to enable the ship to free itself if it becomes fast in the ice.
Ukungqamana netanki ezinkulu ezicinezelayo oluhlobo lwecandela eliphakathi kwenqanawa lwenziwe ukuba inqanawa ibenakho ukuzikhulula ngokwayo ukuba inqanawa ibe semkhenkceni ngokukhawuleza.