In this clear, well-illustrated manual to the Global Positioning System, mariners will find simple solutions to navigational problems. Monahan is a Canadian Coast Guard officer with over 20 years' experience cruising the Inside Passage. Douglass has logged over 150,000 miles cruising from 60 N to 56 S. Includes 150 detailed diagrams, which graphically illustrate the many ways you can use GPS to solve classic piloting and navigation problems. This...