PPRuNe Forums - View Single Post - AS350 - Ground Resonance [video]
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Old 23rd Feb 2012, 11:52
  #11 (permalink)  
Savoia
 
Join Date: Jun 2010
Location: Milano, Italia
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I think before he even realised what was going on, it was all over.
Yes, if he was on drugs perhaps!

In the video (which begins with the onset of GR underway) there are a good 8 seconds (maybe more) before the resonance reaches catastrophic (ie. unrecoverable) proportions. The moment a driver feels any abnormal vibrations (especially of an escalatory nature) instant/immediate action must be taken. That's what you are trained to do!

TRC put it well.

By contrast .. in the clip below (which has done the rounds on PPRuNe I know) the onset occurs at 40 seconds. By 42 seconds the driver has the bird off the ground (probably delayed by the fact that he may have been considering the open door).

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