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Tze Shan

highest elevation airport

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i though got another 1 at peru, not really sure abt the local name

 

i think the worlds highest elevation airfield is at La Paz, Bolivia....

 

Pls correct me if I'm wrong.. :p

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i think the worlds highest elevation airfield is at La Paz, Bolivia....

 

Pls correct me if I'm wrong.. :p

that is El Alto, i think it is not the highest, because only 12++ ft?

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Yes, a longer runway is needed because it takes longer to reach Vr. Vr is based on air speed but at those altitudes, the air speed is much much lower than ground speed because of the lower air density (remember the air speed is measured by the pressure of the air on the pitot tube).

 

The ground speed reaches 140 kts but the air speed is still way behind, therefore you can't rotate yet until further down the runway.

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