REVEALED: Why are plane windows always round? Shocking plane crashes that changed aviation

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Flight secrets plane windows round

GettyFlight secrets: Why are plane windows always round?

Flight secrets have revealed a number of untold mysteries such as what that yellow hook on the wing is for to why all plane seats are blue.

Many passengers may have also noticed that plane windows are always round, despite windows in buildings normally always being square.

This was brought into place in the 1950s and the reason behind it has nothing to do with aesthetics.

So why are plane windows no longer square?

Two plane crashes in 1954 were the catalyst to changing the shape of the windows from square to circular

Two plane crashes in 1954 were the catalyst to changing the shape of the windows from square to circular.

The de Havilland Comet was the world's first commercial aircraft which first flew in 1949 and was a revolutionary change in the aviation industry.

However, it suffered from two plane crashes in 1954 which proved its downfall and changed the way in which planes are designed.

Flight 781 from Rome exploded just 20 minutes after taking off, whilst Flight 201 to Johannesburg crashed into the Mediterranean sea just months later.

small holes in the window.

This means that even if the outer pane of a plane cracks, the pressure can be maintained by an inner pane.

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