No power, and batteries used up? This book and a Mark 3 Sextant lets you carry on.
For those who choose not to invest the time and money to learn the full range of celestial navigation, this booklet and a Mark 3 Sextant provide a minimum backup kit that can be used to navigate across any ocean if needed.
All instructions and tables included; for any ocean, on any date; no background in celestial navigation required.
PB 96 pages