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Emergency Navigation Card
Emergency Navigation Card
Author: David Burch
A wealth of information is provided: an emergency almanac for the sun, and declination tables for the stars; several methods of sight reduction, including one that requires only the card itself; and angular markings on the perimeter of the card that allows approximate altitude measurements of celestial bodies. With this card and a watch you can ...  more »
ISBN-13: 9780939837588
ISBN-10: 0939837587
Publication Date: 6/2000
Pages: 2
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Publisher: Paradise Cay Publications
Book Type: Cards
Members Wishing: 0
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