I often fly between my home in Houston and Tulsa. Often the plane will fly directly over Dallas and DFW airport. Last night was my first time to fly over the airport at night with clear visibility, and I was surprised not to see any runway lights. This was only around 9:00 - I’m know the airport was open and I even saw planes (or blinking lights at least) landing in the broad dark spaces where I know the runways to be at DFW. Obviously, the lights were on, but I couldn’t see them.
After I thought about it today, I realized that I have never seen any runway lights from the air. I know I’ve seen actual airports from the air because of the flashing white/green beacons, etc, but I’ve never seen runway lights.
So my question, of course, is why couldn’t I see the lights? How does the mechanism work? And why is it set up that way?