They are provided with special ballasting arrangements to ensure that they have the necessary margin of stability when hoisting heavy loads out or in.
Zinikelwa ubaluleko kwezinto ezinzima ezilayishwa ukuzinzisa inqanawa ngamalungiselelo okuqinisekisa okokuba banomgca obalulekileyo wokumisa xa unyuso olunzima lomthwalo wangaphandle okanye nangaphakathi.