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Balancing control surfaces

 
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shirleyh



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

PostPosted: Wed Apr 11, 2007 1:52 am    Post subject: Balancing control surfaces Reply with quote

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
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PostPosted: Wed Apr 11, 2007 3:42 am    Post subject: Balancing control surfaces Reply with quote

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
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PostPosted: Wed Apr 11, 2007 3:42 am    Post subject: Balancing control surfaces Reply with quote

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

PostPosted: Wed Apr 11, 2007 3:51 am    Post subject: Re: Balancing control surfaces Reply with quote

Thanks for the explanation!
Shirley
Do Not Archive


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