| http://www.w3.org/ns/prov#value | - The interrogation pulsed LED light signal generated by a second controller 827, of the aircraft 876 may trigger a transmission of a pulsed LED light signals from the first controller 815, as to current air traffic proximate to a tower 894, wind direction, wind speed, visibility, ceiling, and/or weather conditions or other information which may be useful to a pilot.
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