Digital yacht GPS150 dualnav GPS antenna the GPS150 dualnav positioning sensor combines a super accurate 50 channel GPS with glonass, the Russian funded satellite positioning system that is now on line and providing an excellent back up or alternative to GPS. This "smart" sensor will automatically s...

Over 150 years ago, the skills needed to operate a merchant sailing vessel were many and varied. While not nearly as much in demand today as they were in the days of the Yankee clippers, these skills nevertheless remain important and necessary to today's yachtsmen and owners of smaller pleasure boat...

Rule Submersible Bilge Pumps have set the standard for the industry for decades. They are the first choice of yachtsmen and fishermen throughout the world. More innovations in bilge pump design have come from Rule Industries than any other manufacturer, and they are proud to offer the broadest range...

Rule submersible bilge pumps have set the standard for the industry for decades. They are the first choice of yachtsmen and fishermen throughout the world. More innovations in bilge pump design have come from rule industries than any other manufacturer. Pump and switch are stand-alone products compa...

Rule Submersible Bilge Pumps have set the standard for the industry for decades. They are the first choice of yachtsmen and fishermen throughout the world. More innovations in bilge pump design have come from Rule Industries than any other manufacturer, and they are proud to offer the broadest range...

Rule Submersible Bilge Pumps have set the standard for the industry for decades. They are the first choice of yachtsmen and fishermen throughout the world. More innovations in bilge pump design have come from Rule Industries than any other manufacturer, and they are proud to offer the broadest range...

There is deep mystery and profound satisfaction in finding your position on earth by reference to the sun, moon, and stars--not to mention profound relief when the GPS receiver stops working in mid-passage. That is why knowledge of celestial navigation is still a rite of initiation, and its practice...

Prehistoric foragers, conquistadors, missionaries, adventurers, hunters, and rugged agriculturalists parade across the histories of these little-known islands on the horizon of twenty-first century Southern California. This chain of eight islands is home to a biodiversity unrivaled anywhere on Eart...