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Why in the plane need this little hole in a window?





It turns out that the inside of the "window" is only for noise and heat insulation, creating an air gap between them and the outside "glazed", it is not designed for heavy loads. The internal part of the "glass" made from cheaper plexiglass and therefore they are not so strong. Accordingly, there is a risk that due to the large pressure difference in the air gap between the glass windows in the cabin, the interior "window" may burst. To avoid this, and need is the smallest hole, which helps to normalize pressure, removing excess air.











: Mirfactov.ru

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