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Video on a helicopters and its vibrations
I happen to stumble upon this video on Youtube, an Airbus (Eurocopter) EC-120B.  This video goes through the walk around start up and subsequent flight.  I found it to be quite interesting - all of the panel shaking during the run up and during the flight.  I really thought there would be less shaking in a "professionally" built helicopter.  I have hope for my XEL!

I once had a fella tell me that everything that spins, no matter how well it is balanced, has a speed in which it will start to vibrate.  It might be 5,000,000 RPMs but eventually it WILL happen.

Enjoy the video, see you at the Fly-in!
"Pilots - Looking down on people since 1903"
(on a shirt my daughter gave me - author unknown)
Van's Aircraft RV-9 (dragon tail) Flying
Mosquito XEL, factory assist build, flying.

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