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Doggydog123579 t1_isu6e1t wrote

Reply to comment by [deleted] in TIL: Airplanes take off and land into the wind. They takeoff into the wind to reduce the groundspeed required to lift and land into it to reduce groundspeed when landing. by Key-Code-4296

Absolutely wrong. Wake turbulance is always an issue regardless of the wind direction. Even on a day with a perfect headwind you leave a space between flights to allow the wake turbulance to disappear. The reason stated in the OP is the entire reason we take off into the wind, and it has been that way since the Wright Brothers, where the turbulance left behind was effectively negligible.

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