Why All Airplane Windows Round Not Square Or Rectangle ?

In an airplane, during the flight, there can be any corner in the fuselage that can become a weak spot. This weak spot eventually becomes a potential danger as it can cause a mechanical failure and put the lives of people in peril. The question arises here is that how do we get to know that there is a weak spot at a particular point?

It can be explained as – there are some points that can be crushed under the stress which is induced in fuselage during a flight. This stress can develop due to change in atmospheric pressure, wind pressure and other factors.For a manufacturer of an airplane, they won’t need any weak spot on the fuselage and hence try to minimize or eliminate it.

A square or rectangular shaped airplane window has four corners that are four different independent weak spots. There are many windows in an airplane, thus there are many different sites that can break or give way to potential danger in extreme atmospheric conditions.This can result in severe devastation to an airplane and the passengers present in it, even if any one side of a window breaks.

Also Read: Why are airplanes painted white?

The problem of a weak spot is not only related to the square or rectangular shaped window. Any shape that has corners can break under extreme stress conditions and eventually result in an accident. Therefore, the use of a circular shaped window is preferred as its shape distributes the stress evenly over its area and reduces the chance of them falling apart.

Hitherto, you were unaware of the circular shape of planes’ window but now you are mindful of the right answer. So whenever a person questions you about the unique shape of a window, you may confidently respond to them with this answer. Well, that might seldom happen, but it is good to know.


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