All the time when watching airliner radio chatter vids and stuff like that, I see runways being referred to by names like 9-left or 27-right, what gives? Is there a specific reason a runway might be called that despite the airport not having nearly that many runways? Wouldn’t it just be simpler to have runway 1, runway 2, etc.?
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The runway name is its magnetic azimuth in decadegrees. What that means is that if you have a runway that is positioned 90 degrees from magnetic north (pointing East) it would be called runway 09. A runway that is pointing the other direction, 270 degrees from magnetic north (pointing West), would be called runway 27. Runways can be used in either direction and have different names depending on which direction they are being used.
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