Hawaiin Airlines palne years ago that lost the top of the passenger cabin in mid air..it peeled back like a can of sardines...it was later determined that because the airline operated mainly short hops between the islands, the plane in question had THREE time the number of flight evolutions as the average similar airframe with the same number of flight hours.
It doesn't sound like the pressurization/depressurization cycle is an issue here, since wings don't get pressurized. We don't know if the cracked parts compromise the structural integrity of the A/C or what caused the cracking in the first place (Fatigue caused by flex due to wing loading/unloading? Vibration of the Engines? Unforeseen Aerodynamic forces, like clear air turbulence?)
My point is that the number of landing cycles may not apply here.
posted on 01/09/2012 10:54:07 AM PST
( Exploring the fine line between cynicism and outright depression)
" My point is that the number of landing cycles may not apply here. "
Correct, however ? it does matter when the wing takes stresses when it's put under load in lift when rotation ( rotation means when the plane untouches the ground and get's lift, for those who are not familiar with plane terminology ).
It does depend on how many times the wings are flexed and put under load and stress on each fight.
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson