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Thursday, January 28, 2016

Why are the airplane windows oval?

Have you ever noticed that the windows of airplanes always oval and not a square? This may make some of you wonder. A video released recently offered a simple explanation.

The key words why the oval-shaped was chosen due to the flight safety only. As quoted of the Daily Mail on Thursday, January 21, 2016, the box-shaped airplane windows will result in a buildup of pressure on the corners. Meanwhile, the rounded windows drastically reduces the possibility that the pressure buildup.
It is probably something many fliers will have never stopped to consider - but a recent engineering video explains just why it is so vital they have their current shape. (Picture from: http://dailym.ai/1PjL2kI)
On a video made by Real Engineering using a diagram to explain the pressure flow through the cabin during the flight. Also presented a number of points in the window that increased pressure.
The video, produced by Real Engineering, uses diagrams to explain the flow of pressure through the cabin during a journey and show the circled points of a window that would have increased areas of strain. (Picture from: http://dailym.ai/1PjL2kI)
"The corners of a box can collect pressure and can lead to failure due to structural fatigue," explains Dai Wittingham, the leader of the British Aviation Safety Executive Commission explained to MailOnlineTravel.

"The designers prefer the oval shaped windows because it provides a wider viewing space commensurate with height most passenger when sitting."

The shortest part of the oval shape was designed so that the curve does not create an unsafe pressure to the material in the vicinity.

"Lately we have started to see there are a number of designers who choose a more square shape, but always with a curved corner."
Early jets such as the de Havilland Comet featured windows of a square design and suffered several accidents and fatalities as a result. (Picture from: http://dailym.ai/1PjL2kI)
In early jets have square windows and the aircraft designers was scientifically realized the mistake after it was too late. It is seen on the first commercial jet airliner, the De Havilland Comet, when the plane was destroyed in the air in 1954.
The plane has a rectangular-shaped windows. The investigation revealed that one of the windows become a source of structural failure, killing everyone on board.

Air pressure differences inside and outside of the aircraft caused the fuselage slightly expands and in such circumstances, sharp corners on the window adds to the pressure. *** [EKA | FROM VARIOUS SOURCES | DAILYMAIL]
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