the one "driving" the vessel is called "pilot". captain is the
rank.
i have a boat license n i noe the terms, but in layman's english,
pilot is usually used onli when referring to planes, looking at how
everyone here does not even bother to find out the facts before
critisicing, its better to use layman's english to get my meaning
across, if not u'd get stupid replies like "boat where got pilot
one.."
whereever u go, u have to communicate with pple in a way that they
can understand, the whole point is getting the message and meaning
across clearly, not about who's correct or wrong.