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Notes on Astro-Navigation in Polar Regions
Published online by Cambridge University Press: 18 January 2010
Extract
In planning a flight over polar regions, celestial navigation is of paramount importance: Loran and Consol coverage is doubtful and Gee chains non-existent; interpretation of the P.P.I. screen is hampered by lack of accurate survey and the camouflaging of coastlines by ice packs. Thus navigational accuracy and the amount of activity needed to maintain it depend largely on the foresight with which the flight is planned to render celestial information available.
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- Copyright © The Royal Institute of Navigation 1949
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