The rough rule for determining the proportions of cable and hawser used to provide a towrope of a certain weight is that cable, if steel, is about five (or if wrought iron, about seven) times as heavy as wire rope of approximately the same strength.
Umthetho orhabaxa ekumiseni ulwalamano lwentambo yocingo kwakunye neentambo ezinkulu ezisetyenzisiweyo ekunikeni intsowtela yokutsala ubunzima obuthule yila ntambo yocingo, ukuba iphindaphindwa kahlanu (okanye ukuba yintsimbi ekhandiweyo) ubunzima njengentsontela yocingo obunamandla afanayo.