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To: ConservativeStatement
I am not an aeronautical engineer, but there is one thing respecially interesting, and curious, about this article.

Aircraft maintenance cycles are based upon hours flown, as opposed to mileage. Quantas and Singapore Airlines, due to their countries of origin, operate about the longest flight routes in the industry. Therefore, while a Quantas plane may have the same number of flight hours as say, one from Emirates, the Quantas plane probably has a significantly LESSER number of evolutions ( a take off and a landing ) As these are generally the causes of greatest stress on the airframe, it stands to reason that other 380s have an even greater probability of metal fatigue/stress.

If you remember the 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.

7 posted on 01/09/2012 8:36:10 AM PST by ken5050 (The ONLY reason to support Mitt: The Mormon Tabernacle Choir will appear at the WH each Christmas)
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To: ken5050

I remember that Hawaiian flight. IIRC, it had over 80,000 takeoffs and landings under it.


12 posted on 01/09/2012 8:43:26 AM PST by cuban leaf (Were doomed! Details at eleven.)
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To: ken5050

Was that the Aloha Airlines flight?

A link to Wikipedia:

http://en.wikipedia.org/wiki/Aloha_Airlines_Flight_243


15 posted on 01/09/2012 8:47:53 AM PST by ConservativeStatement (Obama "acted stupidly.")
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To: ken5050
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.

25 posted on 01/09/2012 10:54:07 AM PST by ZOOKER ( Exploring the fine line between cynicism and outright depression)
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