REFLECTOR: Flutter testing

Keith Hallsten keithhallsten at quiknet.com
Fri Feb 17 20:33:45 CST 2012


It's actually spelled "reflex".

 

Keith

 

 

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Jones Nick
Sent: Friday, February 17, 2012 11:16 AM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Flutter testing

 

Reflects?

 

Best regards,

Nick

 

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of John Abraham
Sent: Friday, February 17, 2012 2:04 PM
To: 'Velocity Aircraft Owners and Builders list'; 'Ron N Velocity XLFG'
Subject: Re: REFLECTOR: Flutter testing

 

Generally, you will see flutter around 185kias if it is winglet induced.
The initial indication that it feels like is a tire spinning up in the wheel
well.  If you look at the winglet it will be doing a figure 8 pattern and
gets your attention quick.  I have seen this caused the most when the
reflects is taken out of the rudder during finish work.  The only way that
you can eliminate this is to shim the rudders out into the airstream if you
get this.  

 

                      John Abraham

Chief Pilot, Executive V.P. Sales and Marketing

         Description: 4103

                  200 W. Airport Drive

                  Sebastian, FL 32958

             <http://www.velocityaircraft.com/> www.velocityaircraft.com

                  (P): 772-589-1860

                  (F): 772-589-1893

 

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of John Youngblood
Sent: Friday, February 17, 2012 1:46 PM
To: Ron N Velocity XLFG; Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Flutter testing

 

Why do flutter testing?

 

John

On Feb 17, 2012, at 8:12 AM, Ron N Velocity XLFG wrote:

 

 I am continuing my flight testing and have been doing some flutter testing.
What I have been doing is 

whacking the control stick to the front then  back then left then  right to
see if I can induce flutter. So far no flutter up to 165 knots.

I hate this part of the testing the plane is so responsive so when I wack
the stick the plane does an very abrupt move.

Bang my head once .  Ant one found a better way to induce flutter ?

 

Second thing I have noticed at climb out at around 90 knots and start a bank
turn I get a small vibration I think it is buffeting of the canard 

any one else have this happen?

 

Ron

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