Why aircraft may become too heavy to take off at warm temperatures

Flying in extreme heat
    Another difficulty facing civil aviation is the increasing temperatures on our planet, which are making it more difficult for planes to take off at some airports. Furthermore, if heatwaves occur more frequently, more aircraft may be affected by the issue, necessitating the grounding of passengers by the airlines.

    The fundamental difficulty that every airplane has during takeoff is that gravity tries to keep them on the ground because planes are so heavy, according to Paul Williams, an atmospheric science professor at the University of Reading in the United Kingdom. They need to create lift, which is the atmosphere pushing the plane upward, in order to overcome gravity. Although there are several variables that affect lift, one of the most crucial ones is air temperature. Warm air expands, which lowers the amount of molecules that can propel a plane forward.


    Airports with short runways, which give the plane less room to accelerate, and high altitudes, where the air is already naturally thinner, are most affected by the issue. Williams claims that a jet needs 8,200 feet of runway at 104 degrees (40 degrees Celsius) if it needs 6,500 feet at 68 degrees Fahrenheit (20 degrees Celsius). Numerous weather-related factors might cause flights to be canceled or delayed. However, airlines have the right to halt their planes due to high temperatures even on clear, quiet days. Though an essential one to ensure the safety of both passengers and crew, it is a rather uncommon event. The airplane will remain grounded if the air is too thin and the heat is too great. If the sun sets and the temperature drops, the flight may be able to take off. There are a few, more theoretical than practical, ways for pilots to make up for the reduced air density and still take off on time in some milder situations.


REFERENCES

Michael Bartiromo, N. M. W. (2022, June 28). Flying in extreme heat: When is it too hot for takeoff?. The Hill. Retrieved from:


Nemo, L. (2021, May 3). Why extreme heat might cancel your flight. Discover Magazine. Retrieved from: https://www.discovermagazine.com/environment/why-extreme-heat-might-cancel-your-flight







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