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heavy wing with fairings

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rv10builder(at)verizon.ne
Guest

Posted: Fri Dec 14, 2007 7:02 am Post subject: heavy wing with fairings

Someone locally is flying his RV-10 and noticed the  following I thought I would challenge the fliers with:

  

 What I noticed is at faster speeds the heavy right wing is more  noticeable.  Need to figure out what is causing the heavy wing as it  relates to the fairings.  Any suggestions?  Slower speeds not  noticeable.

  

  

  

 Pascal

  

  

 



   [quote][b]

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Tim Olson

Joined: 25 Jan 2007
Posts: 2879

Posted: Fri Dec 14, 2007 7:33 am Post subject: heavy wing with fairings

It's probably just a mis-aligned gear or more likely, gear leg

fairing that is requiring more rudder input.  The wings won't

be level when the rudder is not centered well too, and of course

it gets worse with speed.  Not everyone necessarily is out of

rudder trim when built as-plans, but it sounds like if there's

an "average", it's being about 1/2 to 3/4 ball out requiring

Right rudder to center the ball. I'm thinking that would cause

more of a Left wing low, but perhaps their fairings are aligned

as such that it causes the opposite...anything is possible.

Along with that goes the possibility that the wingtip alignment

isn't perfect, the aileron alignment isn't perfect, the flap

alignment isn't perfect....or you're getting asymmetrical

deflection amounts.  So, it could be a bunch of things, but

most of them just require the builder to check everything

thoroughly and see what they need to tweak.  On the gear

and leg fairings, my advice is to absolutely spare no time

expense of doing it right, with the right tools, the first

time. It's a real pain to redo the alignment of the wheel

fairings, esp. once the intersection fairings are complete.



Tim Olson - RV-10 N104CD - Flying

do not archive

Pascal wrote:

 	  Quote: 	
		   Someone locally is flying his RV-10 and noticed the following I thought 

 I would challenge the fliers with:

  

 What I noticed is at faster speeds the heavy right wing is more 

 noticeable.  Need to figure out what is causing the heavy wing as it 

 relates to the fairings.  Any suggestions?  Slower speeds not noticeable.

  

  

  

 Pascal

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tintopranch

Joined: 29 Jun 2007
Posts: 12

Posted: Fri Dec 14, 2007 8:04 am Post subject: Re: heavy wing with fairings

I had a similar issue and agree with Tim.  Make sure he is flying with the ball centered.  I is most likely a rudder trim issue which is very common on RVs.  Spruce sells some plastic ones you stick on with double sided tape.  Get two so you can cut them down for the right amount of trim.

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_________________
MARK SUTHERLAND
RV-10 40292
Flying since June 07

flywrights(at)yahoo.com
Guest

Posted: Fri Dec 14, 2007 8:34 am Post subject: heavy wing with fairings

I mentioned the wing low/out of trim to another pilot, who suggested that either wing could be low.  If your nose is left (requiring right rudder to center), then with no aileron to counter the lack of trim then you would execute a flat turn to the left.  To maintain a heading you'd have to apply left aileron, raising the left wing.  You'd still be out of trim but the left wing should be high.



 Someone mentioned a heavy right wing with increased speed, which sounds like P-factor without rudder compensation.  Try to be very sensitive to coordinated flight.  You may find that through install error and instrument error that your particular trim ball may need to be closer to the right or left line in order to maintain a "wings level" on the ADI.  But then don't trust the ADI as installed perfectly level, either.  Get a good clear day with a good horizon and judge the wingtips against it.  At cruise you should be able to have very little trim on both your ailerons and your rudder to achieve coordinated, wings-level flight.  Then you get to learn your airplane at different speeds and loads for other trim conditions.

  

 The planes I've been flying lately are pretty tough on this. With just a little too much rudder trim (still centered but slightly to one side), it can cause 20-25 degrees of aileron trim to keep turning tendency at bay.  Those rudders are amazingly powerful!

  

 Rob Wright

 #392

 B.I. - Is this even worth $.02?



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rv10builder(at)verizon.ne
Guest

Posted: Fri Dec 14, 2007 8:45 am Post subject: heavy wing with fairings

Thanks all!

---

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wayne.e(at)grandecom.net
Guest

Posted: Sat Dec 15, 2007 5:08 am Post subject: heavy wing with fairings

I had the same situation on mine and in my case I  determined that it was just in need of right rudder trim. I installed a 7"  long static rudder trim piece and the problem went away. So once figured out it  was a simple fix.

  

 Wayne Edgerton

  

 N602WT

  

       Someone locally is flying his RV-10 and  noticed the following I thought 

      I would  challenge the fliers with:

       

      What I noticed is at faster speeds the heavy  right wing is more 

      noticeable.  Need to  figure out what is causing the heavy wing as it  

      relates to the fairings.  Any  suggestions?  Slower speeds not 

       noticeable.

      

       

      Pascal

       



   [quote][b]

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