Airfoil Runway Threshold 
Pilot Institute
MARCH 28, 2025
When air flows over the aircraft wing, the shape of the airfoil creates low pressure above the wing and relatively higher pressure below the wing. After one aircraft lands, the tailwind pushes the vortices forward into the runways touchdown zone. This distance is measured when the preceding aircraft is over the runway threshold.
Vintage Aviation News
OCTOBER 18, 2024
At that point, you’re simply looking down the runway, and then it lifts off. You just make one great big U-turn, that way you can kind of watch the runway the whole time. And then when you get down near the threshold, you just hold it off and gently let the wheels down. That was one thing I was kind of surprised at.”
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