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Balancing control surfaces

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shirleyh

Joined: 05 Jun 2006
Posts: 15
Location: Perth, Western Australia

Posted: Wed Apr 11, 2007 1:52 am Post subject: Balancing control surfaces

Listers, some advice please from those with more experience than me. Having

flown my RV6 for a year now, I've finally got round to having her painted.

(Bright red - looks fabulous!). I know that I need to rebalance the

elevators, and I think I know how to do that - the Vans manual does cover

that. However, my plastic plane colleagues are adamant that I must do the

same with the ailerons. The Vans manual is, as far as I can find, silent on

that topic. It only refers to the galvanised water pipe being the

counterweight. Other RV builders I've spoken to have not balanced the

ailerons and no-one has had any flutter problems that I know of. Any

comments or advice much appreciated.



Shirley

Perth

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khorton01(at)rogers.com
Guest

Posted: Wed Apr 11, 2007 3:42 am Post subject: Balancing control surfaces

 	  Quote: 	
		   

 <ShirleyH(at)oceanbroadband.net>



 Listers, some advice please from those with more experience than  

 me. Having

 flown my RV6 for a year now, I've finally got round to having her  

 painted.

 (Bright red - looks fabulous!). I know that I need to rebalance the

 elevators, and I think I know how to do that - the Vans manual does  

 cover

 that. However, my plastic plane colleagues are adamant that I must  

 do the

 same with the ailerons. The Vans manual is, as far as I can find,  

 silent on

 that topic. It only refers to the galvanised water pipe being the

 counterweight. Other RV builders I've spoken to have not balanced the

 ailerons and no-one has had any flutter problems that I know of. Any

 comments or advice much appreciated.


	


The elevators are 100% balanced - i.e. the balance weight is adjusted  

so it balances 100% of the moment around the hinge line.  Some  

aircraft have aileron balances that are required to be 100% balanced,  

or some specific lower percentage.  But, the short wing RVs have very  

stiff wings, thus Van did not need to be so particular about aileron  

balance weights.  The specified water pipe is heavy enough.  No need  

to add weight to the aileron balance, and no need to worry about  

aileron flutter.



Kevin Horton

RV-8 (Finishing Kit)

Ottawa, Canada

http://www.kilohotel.com/rv8

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khorton01(at)rogers.com
Guest

Posted: Wed Apr 11, 2007 3:42 am Post subject: Balancing control surfaces

On 11 Apr 2007, at 02:44, Shirley Harding wrote:



 	  Quote: 	
		   

 <ShirleyH(at)oceanbroadband.net>



 Listers, some advice please from those with more experience than  

 me. Having

 flown my RV6 for a year now, I've finally got round to having her  

 painted.

 (Bright red - looks fabulous!). I know that I need to rebalance the

 elevators, and I think I know how to do that - the Vans manual does  

 cover

 that. However, my plastic plane colleagues are adamant that I must  

 do the

 same with the ailerons. The Vans manual is, as far as I can find,  

 silent on

 that topic. It only refers to the galvanised water pipe being the

 counterweight. Other RV builders I've spoken to have not balanced the

 ailerons and no-one has had any flutter problems that I know of. Any

 comments or advice much appreciated.



 Shirley

 Perth

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shirleyh

Joined: 05 Jun 2006
Posts: 15
Location: Perth, Western Australia

Posted: Wed Apr 11, 2007 3:51 am Post subject: Re: Balancing control surfaces

Thanks for the explanation!

Shirley

Do Not Archive

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