The Nautical Almanac for 1981

This is a complete copy of the 1981 Nautical Almanac, with all data, correction tables, and explanations. Data in this book are NO LONGER VALID FOR NAVIGATION. It is preserved in print and ebook because many training programs (including USCG and US Navy ) use examples from 1981 to teach celestial navigation. USCG license exam preparation requires data from this almanac, as do the exams themselves.


All table table in the ebook can be zoomed for clear reading. Text content is searchable.


PLEASE NOTE this is a large ebook file (300 MB) required to preserve good legibility of the small table numbers. It is best downloaded from a 4G or better Internet connection.