This archived news story is available only for your personal, non-commercial use. Information in the story may be outdated or superseded by additional information. Reading or replaying the story in ...

One of the problems of using GPS chartplotters on a sailboat is that it is extremely difficult to calculate accurate arrival times given the amount of tacking often involved. Now there's a ...

With the increasing accuracy and update speeds of modern GPS units, it’s common for sailors to wonder whether using Speed Over Ground and Course Over Ground would be better than the old technology of ...