A person or system that creates, maintains, or places airmarks; one responsible for navigation markers visible from aircraft.
From 'airmark' + '-er' (one who does). A specialized term from early aviation describing people who painted navigation symbols for pilots.
Airmarkers were among aviation's forgotten heroes—they'd climb on building roofs in the 1920s and 1930s to paint enormous arrows and town names so pilots could find their way. Their work was safety infrastructure before technology took over.
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