The Murphy Builders Site

What I did is balance the elevator on the hinge center line and added about
one pound more lead than they furnished. The total weight added was about
75% (don't recall exact number) of what was required to be in balance.
Did not balance ailerons just installed the furnished weights. Nothing added
to rudder.
Al
----- Original Message -----
From: "Steve Halvorsen" <shalvorsen@dataflo.net>
To: <murphy-rebel@dcsol.com>
Sent: Monday, January 26, 2004 4:55 PM
Subject: Balancing of Controls

While everyone is on this subject----- What is the correct way to balance
them? ? ?
I always thought that you would balance them on the pivot line to a

neutral

balance.
I asked Brian at MAM about the weights that were supplied with our kit and
his answer was to just put the weights that were sent in and fly. That's
what everyone else does.
Is this correct? ? ? ? ?

Steve H
Moose 213

*-------------------------------------------------------------------------*

To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://rebel:builder@www.dcsol.com/default.htm
To contact the list admin, e-mail mike.davis@dcsol.com

*-------------------------------------------------------------------------*




*-------------------------------------------------------------------------*
To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://rebel:builder@www.dcsol.com/default.htm
To contact the list admin, e-mail mike.davis@dcsol.com
*-------------------------------------------------------------------------*








-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

While everyone is on this subject----- What is the correct way to balance
them? ? ?
I always thought that you would balance them on the pivot line to a neutral
balance.
I asked Brian at MAM about the weights that were supplied with our kit and
his answer was to just put the weights that were sent in and fly. That's
what everyone else does.
Is this correct? ? ? ? ?

Steve H
Moose 213




*-------------------------------------------------------------------------*
To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://rebel:builder@www.dcsol.com/default.htm
To contact the list admin, e-mail mike.davis@dcsol.com
*-------------------------------------------------------------------------*








-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

The assumption is that the manufacturer has done their homework and drawn
the conclusion that what they have supplied is sufficient weight to insure
no flutter.

The certified world generally does just as you have described and 100%
balances ALL control surfaces (as I did with my alum flaperons - Rebel).

I have always found it strange that MAM put weights in the elevator tips,
but not the rudder tip...considering that in flight they see the exact same
air flow (except for gravity effect on elevator - in level flight) and came
to the conclusion the weights were there more to stop the elevator from
banging down when you let go of the stick than flutter deterrents!

Cheers,
Wayne
----- Original Message -----
From: "Steve Halvorsen" <shalvorsen@dataflo.net>
To: <murphy-rebel@dcsol.com>
Sent: Monday, January 26, 2004 7:55 PM
Subject: Balancing of Controls

While everyone is on this subject----- What is the correct way to balance
them? ? ?
I always thought that you would balance them on the pivot line to a

neutral

balance.
I asked Brian at MAM about the weights that were supplied with our kit and
his answer was to just put the weights that were sent in and fly. That's
what everyone else does.
Is this correct? ? ? ? ?

Steve H
Moose 213

*-------------------------------------------------------------------------*

To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://rebel:builder@www.dcsol.com/default.htm
To contact the list admin, e-mail mike.davis@dcsol.com

*-------------------------------------------------------------------------*



*-------------------------------------------------------------------------*
To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://rebel:builder@www.dcsol.com/default.htm
To contact the list admin, e-mail mike.davis@dcsol.com
*-------------------------------------------------------------------------*








-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Dave:

The only problem I can see by putting the weight in the leading edge of
the flapperon is the amount of weight required. Wayne has put 8Lbs on
each wing with an 8" arm, with only a couple of inches from the hinge,
weights in the leading edge could get up to 20 or more pounds per wing
and the useable weight goes down.

Wayne I thought with the counter weight on the top and the flap
extended your airspeed would be reduced. Is not the flutter a factor of
speed?

Peter

On 26-Jan-04, at 11:34 AM, David Ricker wrote:

Peter

We are building an Elite so it will be a bit different but couldn't
you do
something similar to the Elite and have a weighted spade or even a
hidden
weight enclosed in the wing tip? You would reinforce the end of the
Ail &
attach it there. It would get it out of the way so it wouldn't catch
you as
you walk by.

If you want I can scan the flap exploded assembly drawing so you can
get an
idea about how it was done.

Cheers,

Dave R
www.elite583.cjb.net

"Peter, Juliet, & Wanaao" wrote:

Wayne:

I was talking to an AME last night and he suggest I mount the counter
weight on top of the flapperon and not below.
It would not be in the way and I wouldn't walk into it on a walk
around. What do you think Wayne?

Peter

*---------------------------------------------------------------------
----*
To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://rebel:builder@www.dcsol.com/default.htm
To contact the list admin, e-mail mike.davis@dcsol.com
*---------------------------------------------------------------------
----*

--
David A. Ricker
Fall River, Nova Scotia
Canada





*----------------------------------------------------------------------
---*
To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://rebel:builder@www.dcsol.com/default.htm
To contact the list admin, e-mail mike.davis@dcsol.com
*----------------------------------------------------------------------
---*

*-------------------------------------------------------------------------*
To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://rebel:builder@www.dcsol.com/default.htm
To contact the list admin, e-mail mike.davis@dcsol.com
*-------------------------------------------------------------------------*








-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------

Yes, flutter factor is reduced somewhat with speed, but my concern was that
with full flap and aileron down deflection that the C of G of that weight
ends up behind the pivot point, which would (if not for the force of the air
against the flaperon - and the linkage) cause the whole thing to try and go
ass over tea kettle. (ie: it would try to flip over if not for the push pull
rod connection - but could cause jammed controls none the less).

Wayne

----- Original Message -----
From: "Peter, Juliet, & Wanaao Piascik" <northofsixty@mac.com>
To: <murphy-rebel@dcsol.com>
Sent: Tuesday, January 27, 2004 11:43 AM
Subject: Re: Balancing of Controls

Wayne I thought with the counter weight on the top and the flap
extended your airspeed would be reduced. Is not the flutter a factor of
speed?

Peter

*-------------------------------------------------------------------------*
To unsubscribe from this list go to:
https://www.dcsol.com/public/code/html-subscribe.wcx
Archives located at https://rebel:builder@www.dcsol.com/default.htm
To contact the list admin, e-mail mike.davis@dcsol.com
*-------------------------------------------------------------------------*








-----------------------------------------------------------------
List archives located at: https://mail.dcsol.com/login
username "rebel" password "builder"
Unsubscribe: rebel-builders-unsubscribe@dcsol.com
List administrator: mike.davis@dcsol.com
-----------------------------------------------------------------