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Hawker 800 wing flutter.
https://warbirdinformationexchange.org/phpBB3/viewtopic.php?f=17&t=49842		 Page 1 of 1
Author:  b29flteng [ Fri May 31, 2013 10:09 am ]
Post subject:  Hawker 800 wing flutter.
This makes the "WING OFF" light illuminate. :shock:

http://www.youtube.com/watch?v=6mbIRXnCSts
Author:  The Inspector [ Fri May 31, 2013 10:54 am ]
Post subject:  Re: Hawker 800 wing flutter.
That wil cause the boss to spill his glass of Scotch :drinkers:
Author:  bdk [ Fri May 31, 2013 3:05 pm ]
Post subject:  Re: Hawker 800 wing flutter.
One of the many things that may killl you is modfying an aircraft. Even when you know what you are doing there may be unintended consequences/surprises lurking.
Author:  CAPFlyer [ Fri May 31, 2013 8:16 pm ]
Post subject:  Re: Hawker 800 wing flutter.
Thing is, this has been reported on unmodified aircraft. There is something more going on than modification. There is something with the way the ailerons are balanced that is leading to this being possible.
Author:  bdk [ Fri May 31, 2013 11:04 pm ]
Post subject:  Re: Hawker 800 wing flutter.
Seems that it is damped well enough to not go divergent. My first response would be to slow down!
Author:  Brenden S [ Sat Jun 01, 2013 3:25 am ]
Post subject:  Re: Hawker 800 wing flutter.
I wonder if they were close to max speed at all?
Author:  WallyB [ Sat Jun 01, 2013 8:42 am ]
Post subject:  Re: Hawker 800 wing flutter.
CAPFlyer wrote:
Thing is, this has been reported on unmodified aircraft. There is something more going on than modification. There is something with the way the ailerons are balanced that is leading to this being possible.
http://www.ainonline.com/aviation-news/ainalerts/2013-05-09/bulletin-advises-fl340-limit-api-wingletted-hawkers
Author:  CAPFlyer [ Sat Jun 01, 2013 8:15 pm ]
Post subject:  Re: Hawker 800 wing flutter.
Wally, I'm aware that the post says for API, but I've found other mentions that they've had it reported on aircraft after the winglets were removed and on aircraft with the other style of winglets (can't remember the manufacturer now). I suspect that there is something in how the ailerons are being balanced that is making this possible and is why API is requiring a change in how the ailerons are balanced to fix the problem. I suspect we'll see a wider bulletin in the near future.
Author:  mustanglover [ Fri Jun 07, 2013 2:27 pm ]
Post subject:  Re: Hawker 800 wing flutter.
It is still only the API winglet aircraft that are affected.

No other winglet or basic 800 aircraft have had this type of problem, contrary to what others may be saying here or there.
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