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by David Burch

This book has been used for 30 years, updated periodically as needed. More than 20,000 students have successfully learned ocean navigation from these materials and gone on to cross oceans ...

by Bob Burns, Mike Burns

Over 100K copies sold The official navigation textbook used in outdoor education courses by thousands of students Map and compass skills remain the foundation for traveling safely in the ...

by Thomas J. Cutler

As paper navigational charts are replaced by vector images on computer screens, magnetic compasses enhanced by digital flux gate technology, and chronometers joined by atomic clocks, the demand has been ...

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