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Old 9th Mar 2014, 05:58
  #632 (permalink)  
DWS
 
Join Date: Jul 2013
Location: redmond
Age: 88
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RE 777 WING TEST


By the way - I was at that test- Being a then recently retired injun - ear having worked on that program. And i attended the quick look summary afterwards.

They had handed out before the test a marked page showing where they expected the failure to occur. the quick look data displayed in the conference room indicated the prediction was within a few inches of expected- verifying the computer program analysis. It was as I recall on the upper surface in compression at about the second or third rib out from side of body join.

I mention this only to show that the test was accurate, did not flex ' up and down' as some say and exceeded the required load by a few percent.

And from memory - it would take a approx 3 g plus pull up ( as in recovery from a dive ) to fail the wing.
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