Why are runways longer for takeoffs and landings at high-altitude airports, such as those in Denver and Mexico City?
Solution 52E Step 1 The takeoff of an aircraft is possible only when the aeroplane gains a sufficient pressure for lift. In high altitude airports, the air pressure will be comparatively low. The engine performance of an aeroplane depends on the air pressure. If the air pressure is low, the engine performance will be low and it will take more time to gain the sufficient pressure for take off. So, the runway should have more length in order to gain the sufficient pressure for take off. During landing, the drag force exerted by the air will be comparatively less in high altitude airports due to low pressure. So, it needs a longer runway to stop the aeroplane. Conclusion The runways are longer in high altitude airports due to the low air pressure which will affect the takeoff and landing of an aeroplane.