A messenger is used instead of a heaving line to pass the heavier hawsers between ships, or ship and shore, as it is made of heavier stuff.
Isithunywa sisetyenziswa ngokomgca onzima wokugqithisa ubunzima bentambo enkulu phakathi kwenqanawa, okanye inqanawa xa zisenza ubunzima ezintweni.