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ron.mcgann(at)baesystems.
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 Posted: Wed Nov 28, 2007 3:13 am Post subject: Balancing Control Surfaces |
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G'day all,
I remember reading some posts recently about the need to balance control surfaces and rebalance after paint. Can somebody point me to some reading material on control surface balancing and how it is achieved on the -10? Does it involve adding/removing mass to/from the counterbalance weights on the elevators and rudder?? Is this problematic if the fairings have been installed??
thanks in advance
Ron
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VHMUM(at)bigpond.com
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| Posted: Wed Nov 28, 2007 5:57 am Post subject: Balancing Control Surfaces |
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| Quote: | [b]Match: #23Message: #12987From: "Carl Froehlich" <carl.froehlich(at)cox.net>Subject: Elevator BalanceDate: Sep 30, 2007 | Quote: |
I sent a note to Van's awhile back on elevator balance. When building my
RV-8A the instructions told you to trim the counterbalance weights until the
elevators were balance, as in statically balances so that the elevators stay
horizontal with no force acting on them. The weights in the RV-8A are much
larger than the RV-10.
Building the RV-10 it is obvious that to achieve this same balance requires
much larger counterbalance weights than that supplied with the kit. Van's
reply to my question about this was "the elevators will hang trailing edge
down" and that there is not need to add the weight to make them statically
balanced as in the RV-8A.
Recommend just building as per plan.
Carl Froehlich
RV-8A (350 hrs)
RV-10 (wings)
Dogwood Airpark (VA42)
_____
From: owner-rv10-list-server(at)matronics.com
[mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Rene
Sent: Saturday, September 29, 2007 11:55 PM
Subject: Elevator Balance
I am confused about the balance of the elevator. The plans say a max of
37.5 in/lbs down. Without having the elevator connected to the controls and
trim tabs not connected I measured the balance. It is about 15 in/lbs
down. So my questions are:
What is the minimum?
When should it be measured? I am assuming after all rigging is complete.
Any suggestions would be appreciated.
Rene'
40322
N423CF
Final assembley
801-721-6080
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End Msg: #23 |
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Deems Davis
Joined: 09 Jan 2006
Posts: 925
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| Posted: Wed Nov 28, 2007 7:55 am Post subject: Balancing Control Surfaces |
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Seems 'Vans' is talking out of both sides of their mouth, Ref: the
Rvator article on 'flutter'
What's the TRUE story?
Has anybody that has their airplane painted witnessed the painter
balance the elevator/rudder?
Is there anyway to balance Aileron?
Deems
Chris and Susie McGough wrote:
[quote] *
*Match: * */#23/*
*Message: * */#12987/*
*From: * */"Carl Froehlich" <carl.froehlich(at)cox.net>/*
*Subject: * /*Elevator Balance
<http://www.matronics.com/searching/getmsg_script.cgi?INDEX 5127016?KEYS=balance?LISTNAME=RV10?HITNUMBER 3?SERIAL=05535527250?SHOWBUTTONS=NO>*/
*Date: * */Sep 30, 2007/*
I sent a note to Van's awhile back on elevator balance. When
building my RV-8A the instructions told you to trim the
counterbalance weights until the elevators were balance, as in
statically balances so that the elevators stay horizontal with no
force acting on them. The weights in the RV-8A are much larger
than the RV-10. Building the RV-10 it is obvious that to achieve
this same balance requires much larger counterbalance weights than
that supplied with the kit. Van's reply to my question about this
was "the elevators will hang trailing edge down" and that there is
not need to add the weight to make them statically balanced as in
the RV-8A. Recommend just building as per plan. Carl Froehlich
RV-8A (350 hrs) RV-10 (wings) Dogwood Airpark (VA42) _____ From:
owner-rv10-list-server(at)matronics.com
[mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Rene
Sent: Saturday, September 29, 2007 11:55 PM Subject: RV10-List:
Elevator Balance I am confused about the balance of the elevator.
The plans say a max of 37.5 in/lbs down. Without having the
elevator connected to the controls and trim tabs not connected I
measured the balance. It is about 15 in/lbs down. So my questions
are: What is the minimum? When should it be measured? I am
assuming after all rigging is complete. Any suggestions would be
appreciated. Rene' 40322 N423CF Final assembley 801-721-6080
*End Msg: * */#23 /*
<http://www.matronics.com/searching/find_msg.cgi?TYPE=pmatch?SERIAL=05535527250?INDEX 5127016?KEYS=balance?LISTNAME=RV10?HITNUMBER 3>
<http://www.matronics.com/searching/find_msg.cgi?TYPE=pmsg?SERIAL=05535527250?INDEX 5127016?KEYS=balance?LISTNAME=RV10?HITNUMBER 3>
<http://www.matronics.com/searching/find_msg.cgi?TYPE=nmsg?SERIAL=05535527250?INDEX 5127016?KEYS=balance?LISTNAME=RV10?HITNUMBER 3>
<http://www.matronics.com/searching/find_msg.cgi?TYPE=nmatch?SERIAL=05535527250?INDEX 5127016?KEYS=balance?LISTNAME=RV10?HITNUMBER 3>
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