Marine Glossary
Dead Reckoning
Navigating by calculating position from a known starting point, using heading, speed, and time. No GPS or landmarks required.
Marine Glossary
Navigating by calculating position from a known starting point, using heading, speed, and time. No GPS or landmarks required.
Learn more
Paper charts aren't dead. Learn the 12 symbols every coastal boater must know, how to interpret depth contours, and why your chartplotter can lie.