The Murphy Builders Site

Hi all
I need to double check some measurements.I'm installing the dash
braces and they aren't lining up just right.
I moved the firewall back as per manual and wanted to know the
distance from the face of the pannel to the firewall,
or from the rear edge of the upright's on the cage to the face of the
pannel.The problem is the angle of the bends in the dash
pannel have changed when shortening and the braces don"t meet in the
middle of the firewall.If someone wouldn't mind checking those
dimensions for me it would tell me what the heck is going
under there.
Appreciate the help
Jason
817R

Jason

I don't have dimensions but I can tell you that I do seem to recall
extending the brackets on the firewall out a couple of inches aft to
make the angles work. I assume you did cut back the side panels of the
instrument panel to pull the panel rearwards.

I believe I also changed the angle the tubes meet the instrument panel
at a tiny bit. I already had a very strong channel with reinforced
corners under the panel otherwise that might not be a good idea.

Ken

Rebecca Brownell wrote:

Hi all
I need to double check some measurements.I'm installing the dash
braces and they aren't lining up just right.
I moved the firewall back as per manual and wanted to know the
distance from the face of the pannel to the firewall,
or from the rear edge of the upright's on the cage to the face of the
pannel.The problem is the angle of the bends in the dash
pannel have changed when shortening and the braces don"t meet in the
middle of the firewall.If someone wouldn't mind checking those
dimensions for me it would tell me what the heck is going
under there.
Appreciate the help
Jason
817R

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Thanks Ken
I did trim the panel back as well which keeps the same space behind
the panel.I was thinking that I could do what you seem to have done
in changing the angle a bit and reinforcing the corner of the
panel.just wasn't sure if this was acceptable or not.The braces are
more to stiffen
the panel than the firewall isn't it?It's not a huge correction,I'd
say 4 or 5 degrees.Do you think I'm OK to do it that way?Thanks so
much for the input.

Jason
817R
On 13-Dec-08, at 3:13 PM, Ken wrote:

Jason

I don't have dimensions but I can tell you that I do seem to recall
extending the brackets on the firewall out a couple of inches aft to
make the angles work. I assume you did cut back the side panels of the
instrument panel to pull the panel rearwards.

I believe I also changed the angle the tubes meet the instrument panel
at a tiny bit. I already had a very strong channel with reinforced
corners under the panel otherwise that might not be a good idea.

Ken

Rebecca Brownell wrote:

Hi all
I need to double check some measurements.I'm installing the dash
braces and they aren't lining up just right.
I moved the firewall back as per manual and wanted to know the
distance from the face of the pannel to the firewall,
or from the rear edge of the upright's on the cage to the face of the
pannel.The problem is the angle of the bends in the dash
pannel have changed when shortening and the braces don"t meet in the
middle of the firewall.If someone wouldn't mind checking those
dimensions for me it would tell me what the heck is going
under there.
Appreciate the help
Jason
817R

Jason

Actually I always figured that the braces were indeed mostly to tie
the
door posts to the firewall. Imagine the tube being pulled firmly as
the
engine mount tries to pull the firewall sideways. That pull will also
try to move the instrument panel so I'd recommend a gusset at the
bottom
corner of the panel at the bend if you change the brace direction a
few
degrees. Don't know if MAM would agree but there isn't a lot of
choices
there.

Note that some folks also put a gusset under the glareshield at the
top
of the instrument panel where the bend is as well as apparently there
have been some cracks reported in the glareshield there. Same
situation
with the firewall pulling sideways I believe. I put gussets on the top
and bottom of the panel.

Ken

Rebecca Brownell wrote:

Thanks Ken
I did trim the panel back as well which keeps the same space behind
the panel.I was thinking that I could do what you seem to have done
in changing the angle a bit and reinforcing the corner of the
panel.just wasn't sure if this was acceptable or not.The braces are
more to stiffen
the panel than the firewall isn't it?It's not a huge correction,I'd
say 4 or 5 degrees.Do you think I'm OK to do it that way?Thanks so
much for the input.

Jason
817R
On 13-Dec-08, at 3:13 PM, Ken wrote:

Jason

I don't have dimensions but I can tell you that I do seem to recall
extending the brackets on the firewall out a couple of inches aft to
make the angles work. I assume you did cut back the side panels of
the
instrument panel to pull the panel rearwards.

I believe I also changed the angle the tubes meet the instrument
panel
at a tiny bit. I already had a very strong channel with reinforced
corners under the panel otherwise that might not be a good idea.

Ken

Rebecca Brownell wrote:

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Jason: THIS MAY, OR MAY NOT BE AN OPTION, BUT WHEN I
MOVED THE INSTURMENT PANEL BACK I MADE THE FACE OF
THE PANEL 2'' WIDER, AND MADE THE TWO ANGLE PANELS
SHORTER. SO THE ANGLE TO THE FIREWALL REMAINED AS PER
MAM SPECS.
HOWEVER , TO DO THIS I HAD TO BUILD A COMPLETE NEW
INSTURMENT PANEL












On 12/13/2008 7:39 PM, brownell@candlelight.ca wrote to rebel-
builders:

-> Ken
-> Thanks a lot,That's good thinking.I'll put gussets both top and
-> bottom.That otta hold'er!
-> Appreciate the input.
-> Jason
-> On 13-Dec-08, at 10:57 PM, Ken wrote:
->
-> > Jason
-> >
-> > Actually I always figured that the braces were indeed mostly to
tie
-> > the
-> > door posts to the firewall. Imagine the tube being pulled
firmly as
-> > the
-> > engine mount tries to pull the firewall sideways. That pull
will also
-> > try to move the instrument panel so I'd recommend a gusset at the
-> > bottom
-> > corner of the panel at the bend if you change the brace
direction a
-> > few
-> > degrees. Don't know if MAM would agree but there isn't a lot of
-> > choices
-> > there.
-> >
-> > Note that some folks also put a gusset under the glareshield at
the
-> > top
-> > of the instrument panel where the bend is as well as apparently
there
-> > have been some cracks reported in the glareshield there. Same
-> > situation
-> > with the firewall pulling sideways I believe. I put gussets on
the top
-> > and bottom of the panel.
-> >
-> > Ken
-> >
-> > Rebecca Brownell wrote:
-> >> Thanks Ken
-> >> I did trim the panel back as well which keeps the same space
behind
-> >> the panel.I was thinking that I could do what you seem to have
done
-> >> in changing the angle a bit and reinforcing the corner of the
-> >> panel.just wasn't sure if this was acceptable or not.The
braces are
-> >> more to stiffen
-> >> the panel than the firewall isn't it?It's not a huge
correction,I'd
-> >> say 4 or 5 degrees.Do you think I'm OK to do it that way?
Thanks so
-> >> much for the input.
-> >>
-> >> Jason
-> >> 817R
-> >> On 13-Dec-08, at 3:13 PM, Ken wrote:
-> >>
-> >>> Jason
-> >>>
-> >>> I don't have dimensions but I can tell you that I do seem to
recall
-> >>> extending the brackets on the firewall out a couple of inches
aft to
-> >>> make the angles work. I assume you did cut back the side
panels of
-> >>> the
-> >>> instrument panel to pull the panel rearwards.
-> >>>
-> >>> I believe I also changed the angle the tubes meet the
instrument
-> >>> panel
-> >>> at a tiny bit. I already had a very strong channel with
reinforced
-> >>> corners under the panel otherwise that might not be a good
idea.
-> >>>
-> >>> Ken
-> >>>
-> >>> Rebecca Brownell wrote:
-> >>>> Hi all
-> >>>> I need to double check some measurements.I'm installing the
dash
-> >>>> braces and they aren't lining up just right.
-> >>>> I moved the firewall back as per manual and wanted to know the
-> >>>> distance from the face of the pannel to the firewall,
-> >>>> or from the rear edge of the upright's on the cage to the
face of
-> >>>> the
-> >>>> pannel.The problem is the angle of the bends in the dash
-> >>>> pannel have changed when shortening and the braces don"t meet
in
-> >>>> the
-> >>>> middle of the firewall.If someone wouldn't mind checking those
-> >>>> dimensions for me it would tell me what the heck is going
-> >>>> under there.
-> >>>> Appreciate the help
-> >>>> Jason
-> >>>> 817R
-> >>>
-> >
-> >
-> >
-> > -----------------------------------------------------------------
-> > 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
-> > -----------------------------------------------------------------
-> >
-> >
-> >
->




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Thanks but just changing the angle a bit and making a couple brackets
worked very well.Still lots of room behind pannel,not really an
issue at all.Thanks for the input though.Appriciate it.
Thanks
Jason
817R
On 15-Dec-08, at 2:52 PM, kpierson@dcsol.com wrote:

Jason: THIS MAY, OR MAY NOT BE AN OPTION, BUT WHEN I
MOVED THE INSTURMENT PANEL BACK I MADE THE FACE OF
THE PANEL 2'' WIDER, AND MADE THE TWO ANGLE PANELS
SHORTER. SO THE ANGLE TO THE FIREWALL REMAINED AS PER
MAM SPECS.
HOWEVER , TO DO THIS I HAD TO BUILD A COMPLETE NEW
INSTURMENT PANEL

I like this idea. On my panel the flight instruments are on a floating
subpanel so the dash is almost cut all the way through there and also
where the radio stack is. It would have been simple and invisible to
widen the existing panel by two inches. Of course I didn't know that
back when I fitted the panel...
Ken

Rebecca Brownell wrote:

Thanks but just changing the angle a bit and making a couple brackets
worked very well.Still lots of room behind pannel,not really an
issue at all.Thanks for the input though.Appriciate it.
Thanks
Jason
817R
On 15-Dec-08, at 2:52 PM, kpierson@dcsol.com wrote:

Jason: THIS MAY, OR MAY NOT BE AN OPTION, BUT WHEN I
MOVED THE INSTURMENT PANEL BACK I MADE THE FACE OF
THE PANEL 2'' WIDER, AND MADE THE TWO ANGLE PANELS
SHORTER. SO THE ANGLE TO THE FIREWALL REMAINED AS PER
MAM SPECS.
HOWEVER , TO DO THIS I HAD TO BUILD A COMPLETE NEW
INSTURMENT PANEL

One thing I've kept wondering through this thread is....
If the dash is structural, as is said for the Rebel line, how does one
know
where and how much can be cut away for a sub panel? (let alone cut away
for
instruments/radio themselves).

-Ben/ 496r

On 12/17/2008 8:49 PM, klehman@albedo.net wrote to rebel-builders:

I like this idea. On my panel the flight instruments are on a floating
subpanel so the dash is almost cut all the way through there and also
where the radio stack is. It would have been simple and invisible to
widen the existing panel by two inches. Of course I didn't know that
back when I fitted the panel...
Ken

Rebecca Brownell wrote:

Thanks but just changing the angle a bit and making a couple brackets
worked very well.Still lots of room behind pannel,not really an
issue at all.Thanks for the input though.Appriciate it.
Thanks
Jason
817R
On 15-Dec-08, at 2:52 PM, kpierson@dcsol.com wrote:

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It's structural in the sense that it helps keep the carry thru cage square
and gives it some support from becoming a parallelogram. As long as it has
enough meat left in it to be torsionally resistant you're fine. The main
thing is the dash braces correctly installed... I even like a second set of
tubes at the top of the panel as well...and be sure to make some semi-circle
doublers for the "glare shield" deck at the isntrument panel
corners....otherwise over time it will buckle in those locations.

----- Original Message -----
From: <bransom@dcsol.com>
To: <rebel-builders@dcsol.com>
Sent: Thursday, December 18, 2008 8:15 PM
Subject: Re: [rebel-builders] Dimentions-dash

One thing I've kept wondering through this thread is....
If the dash is structural, as is said for the Rebel line, how does one
know
where and how much can be cut away for a sub panel? (let alone cut away
for
instruments/radio themselves).

-Ben/ 496r

On 12/17/2008 8:49 PM, klehman@albedo.net wrote to rebel-builders:

I like this idea. On my panel the flight instruments are on a floating
subpanel so the dash is almost cut all the way through there and also
where the radio stack is. It would have been simple and invisible to
widen the existing panel by two inches. Of course I didn't know that
back when I fitted the panel...
Ken

Rebecca Brownell wrote:

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Thanks Wayne
-Ben

On 12/18/2008 4:25 PM, oifa@irishfield.on.ca wrote to rebel-builders:

It's structural in the sense that it helps keep the carry thru cage square
and gives it some support from becoming a parallelogram. As long as it has
enough meat left in it to be torsionally resistant you're fine. The main
thing is the dash braces correctly installed... I even like a second set

tubes at the top of the panel as well...and be sure to make some

doublers for the "glare shield" deck at the isntrument panel
corners....otherwise over time it will buckle in those locations.

----- Original Message -----
From: <bransom@dcsol.com>
To: <rebel-builders@dcsol.com>
Sent: Thursday, December 18, 2008 8:15 PM
Subject: Re: [rebel-builders] Dimentions-dash

One thing I've kept wondering through this thread is....
If the dash is structural, as is said for the Rebel line, how does one
know
where and how much can be cut away for a sub panel? (let alone cut away
for
instruments/radio themselves).

-Ben/ 496r

On 12/17/2008 8:49 PM, klehman@albedo.net wrote to rebel-builders:

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My glareshield buckled at both corners and was starting to crack so I
replaced it with .032. I also have a crack at the bottom of the panel that
I stop drilled and added a V shaped piece to fill the gap top and bottom
where the panel changes direction.

At 07:29 AM 19/12/2008 -0900, you wrote:

Thanks Wayne
-Ben

On 12/18/2008 4:25 PM, oifa@irishfield.on.ca wrote to rebel-builders:

It's structural in the sense that it helps keep the carry thru cage
square
and gives it some support from becoming a parallelogram. As long as it
has
enough meat left in it to be torsionally resistant you're fine. The main
thing is the dash braces correctly installed... I even like a second set

of

tubes at the top of the panel as well...and be sure to make some

semi-circle

doublers for the "glare shield" deck at the isntrument panel
corners....otherwise over time it will buckle in those locations.

----- Original Message -----
From: <bransom@dcsol.com>
To: <rebel-builders@dcsol.com>
Sent: Thursday, December 18, 2008 8:15 PM
Subject: Re: [rebel-builders] Dimentions-dash

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Drew



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Stop landing on one float Drew !! lol

----- Original Message -----
From: "Drew Dalgleish" <drewjan@cabletv.on.ca>
To: <rebel-builders@dcsol.com>
Sent: Friday, December 19, 2008 5:23 PM
Subject: Re: [rebel-builders] Dimentions-dash

My glareshield buckled at both corners and was starting to crack so I
replaced it with .032. I also have a crack at the bottom of the panel that
I stop drilled and added a V shaped piece to fill the gap top and bottom
where the panel changes direction.

At 07:29 AM 19/12/2008 -0900, you wrote:

Thanks Wayne
-Ben

On 12/18/2008 4:25 PM, oifa@irishfield.on.ca wrote to rebel-builders:

of

semi-circle

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Drew



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