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ICAO
Rulers
These plastic
ICAO Chart Rulers are graduated in both statute and nautical miles
for use with 1:1,000,000 and 1:500,000 scale aeronautical charts.
Widely used by students and licensed aviators everywhere, they are
excellent tools for navigation training exercises and real-world
navigation applications.
Each ruler also provides, on its reverse side, a multitude of Conversion Factors, VHF Reception Distances, Standard Time Conversions to UTC, Time Equivalencies, Flight Plan Sequences, and an Aviation Gasoline Conversion table showing the weight, in pounds at 15ºC, of incremental volumes of gasoline up to 100 litres.



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