Are airplane windows called portholes?

A porthole window is usually a circular window that can be manufactured to open or stay closed. They can be used on planes, ships and houses. Often when being manufactured for a house, a porthole window is used as a decorative piece to add contrasting elements to an otherwise boxy room.



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Known as “bleed holes”, they help regulate air pressure changes as planes climb to cruising altitudes of up to 33,000 feet. At high altitudes, air pressure and oxygen levels reduce.

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That's why you might notice a tiny little hole in every airplane window. That hole, known as a bleed hole, is a crucial element in the structure because it helps to regulate air pressure.

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On this page you'll find 5 synonyms, antonyms, and words related to air hole, such as: air duct, air pipe, air tube, and air well.

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On many aircraft types, pilots can open the side windows in the cockpit. The main reason for this is not for ventilation or vision; it is related to aircraft safety law.

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Sudden decompression, which would occur if a plane door was suddenly thrust open, is another matter. Anyone standing near the exit would be ejected into the sky; the cabin temperature would quickly plummet to frostbite-inducing levels, and the plane itself might even begin to break apart.

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