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Old 7th Dec 2018, 11:25
  #12546 (permalink)  
Join Date: Jun 2002
Location: east ESSEX
Posts: 3,137
FED, I agree with Wander,knew him well...

DHF,I suspect that the aircraft would have been instrumented with `strain gauges` `g meters.,etc and a series of gradually increasing manoeuvres carried out to determine actual stresses involved ,in support of the designers calculations....
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