They indicate to harbour craft the positions of the pro- pellers and they should be shipped whenever the ship docks or berths alongside, or whenever she is manoeuvred by tugs, or when other vessels are berthed alongside.
Balathisa kwinqwelo yokuhamba emanzini esezibukweni iindawo zeziqhubi yaye kufuneka zithwale nanini na xa imisa edokisini okanye imisa ecaleni okanye ilawula ngudokolwana okanye xa ezinye iinqanawa zimise ecaleni kwayo.