PPRuNe Forums - View Single Post - Aeronautical Charts "FI" identification beacons
Old 11th Nov 2022, 11:32
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ORAC
Ecce Homo! Loquitur...
 
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Doing a bit of digging, and via admiralty charts, it would appear to be an international standard…..

https://en.wikipedia.org/wiki/Light_characteristic



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