When a ship is being towed the drag of each of her propellers may be as much as, or even greater than, the resistance offered by the underwater surface of her hull.
Xa inqanawa irhuqwa uqweqwediso lwesinye seziqhubi zakhe lungalukhulu okanye nangaphezulu, uxhathiso olunikezelwa ngaphantsi kwamanzi esiqu senqanawa.