Re: Airliner Windows

Date:         11 Sep 97 03:35:33 
From: (Gerard Foley)
Organization: The Greater Columbus FreeNet
References:   1 2 3 4 5
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Syiad T. Al-Duri ( wrote:

: "[non-spam]jfmezei" (jf mezei) wrote in sci.aeronautics.airliners
: > TLC (The Learning Channel TV in the USA) had a programme about airliner
: > crashes last week. They talked about the COMET plane in the UK back in
: > the 50s which suffered structural failures at altitude due to pressure
: > differentials.


: AFAIK, the main problem with the COMET where the high engine vibrations. It
: was the first passenger aircraft with jet engines and they were pretty rough
: at those times. The engines were mounted in the root of the wing, where the
: bending torque has the highest value.

No.  The failure mode was duplicated in a water tank, with no engines
involved.  It was a fatigue failure at the place where the stress was
raised due to the shape and location of the hole for the window.  The
failure was important because of the pressure differential (the cycling
of which on takeoff and descent had caused the failure in the first
place) which ripped the fuselage apart when the failure occurred.