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ChuckChuckelson t1_isqf33b wrote

Reply to comment by AvNerd-Dispr 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

you are right I meant to point out its less important for jets hat have two mile of runway

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AvNerd-Dispr t1_isqjf6t wrote

Depends on the jet and how much payload and fuel it’s carrying. Also depends on the airport, altitude, temperature, obstacle clearance requirements, etc. I have planned and dispatched 777’s off 13000’ runways where we were bumping cargo to other flights due to poor takeoff performance.

Runway length is only 1 piece of a very complicated formula for determining payload allowed, its called Runway Allowable Takeoff Weight, or RATOW - this number can be higher than structural, in which case structural would be the weight limit, or it can be much lower depending on a whole host of factors, in addition to the length of the runway and the amount of headwind or tailwind.

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