The Murphy Builders Site

Hi all
Ran into a wee problem today mounting the fin.If anyone could offer
some insight it would be appreciated.
Mounted the horizontal bulkhead, stood the fin up to it and the front
attach bracket does not reach the fus 36 bulkhead
by 3/16".The fus 30 wrap stays flat on the table with the rest of the
tail cone doesn't it?

Slightly baffeled
Jason
817R



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correction;the front attach bracket doesn't reach the fus 43 bulkhead
(not fus 36)The only thing
I can see is either the horizontal bulkhead is too long or the pre
punched holes in the bulkhead
are in the wrong place.Anyone seen that before?Any problems using a
3/16' spacer to fill the gap?
Would have to do the same for the stabs.

thanks
Jason

On 15-Oct-08, at 4:21 PM, Rebecca Brownell wrote:

Hi all
Ran into a wee problem today mounting the fin.If anyone could offer
some insight it would be appreciated.
Mounted the horizontal bulkhead, stood the fin up to it and the front
attach bracket does not reach the fus 36 bulkhead
by 3/16".The fus 30 wrap stays flat on the table with the rest of the
tail cone doesn't it?

Slightly baffeled
Jason
817R

Hi all
Ran into a wee problem today mounting the fin.If anyone could offer
some insight it would be appreciated.
Mounted the horizontal bulkhead, stood the fin up to it and the front
attach bracket does not reach the fus 36 bulkhead
by 3/16".The fus 30 wrap stays flat on the table with the rest of the
tail cone doesn't it?

Slightly baffeled
Jason
817R

Not all Fus-30's are perfectly flat on the table from what I can see
on
flying Rebels. I do recall bending the stab forward attach brackets a
bit to get a good fit. Also recall adjusting the vertical fin
forward a
bit I think for same reason.
Ken

Rebecca Brownell wrote:

Hi all
Ran into a wee problem today mounting the fin.If anyone could offer
some insight it would be appreciated.
Mounted the horizontal bulkhead, stood the fin up to it and the front
attach bracket does not reach the fus 36 bulkhead
by 3/16".The fus 30 wrap stays flat on the table with the rest of the
tail cone doesn't it?

Slightly baffeled
Jason
817R

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Not all Fus-30's are perfectly flat on the table from what I can see
on
flying Rebels. I do recall bending the stab forward attach brackets a
bit to get a good fit. Also recall adjusting the vertical fin
forward a
bit I think for same reason.
Ken

Rebecca Brownell wrote:

Hi all
Ran into a wee problem today mounting the fin.If anyone could offer
some insight it would be appreciated.
Mounted the horizontal bulkhead, stood the fin up to it and the front
attach bracket does not reach the fus 36 bulkhead
by 3/16".The fus 30 wrap stays flat on the table with the rest of the
tail cone doesn't it?

Slightly baffeled
Jason
817R

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Hi Jason,

So is this a manufacturing problem? If so confirming it's FUS-43?
Thanks,
Craig

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of
Rebecca Brownell
Sent: Wednesday, October 15, 2008 4:26 PM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] fin attach

Thanks Ken,Bob
It is the positioning of the bulkhead.The pre punched holes in the
solid bulkhead are exactly 3/16' off of centre on the flanges, the
exact distance I am out.I think with a little finesse I can make 'er
work.I thought the holes looked a little close to the edge when I
first
clecoed it on.Should have checked.Can't complain though,It's amazing
how well everything has lined up so far.

Thanks so much for the input,greatly appreciated.
Jason
817R
On 15-Oct-08, at 7:22 PM, Ken wrote:

Not all Fus-30's are perfectly flat on the table from what I can see
on
flying Rebels. I do recall bending the stab forward attach brackets a
bit to get a good fit. Also recall adjusting the vertical fin
forward a
bit I think for same reason.
Ken

Rebecca Brownell wrote:

Hi all
Ran into a wee problem today mounting the fin.If anyone could offer
some insight it would be appreciated.
Mounted the horizontal bulkhead, stood the fin up to it and the
front
attach bracket does not reach the fus 36 bulkhead
by 3/16".The fus 30 wrap stays flat on the table with the rest of
the
tail cone doesn't it?

Slightly baffeled
Jason
817R

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Jason
I ran into this too. I'm dashing to a meeting so can't recall details -- I
think the problem was that just a minor difference in the angle of the aft
most bulkhead translates to the mismatch you (and I and others) run into.
That angle is determined by a couple holes only inches apart. Try shifting
the angle of that aft bulkhead and you'll see the fix come into place.

I documented my fix at: http://mae.ucdavis.edu/ransom/Murphy/11.06/

-Ben

Ben,
Are in Davis? If so, can I give you a call about your Rebel?
Thanks,
Chuck Goosic
Fresno,Ca
559 246 2614

--- On Thu, 10/16/08, bransom@dcsol.com <bransom@dcsol.com> wrote:

From: bransom@dcsol.com <bransom@dcsol.com>
Subject: Re: [rebel-builders] fin attach
To: rebel-builders@dcsol.com
Date: Thursday, October 16, 2008, 8:56 AM

Jason
I ran into this too. I'm dashing to a meeting so can't recall details
-- I
think the problem was that just a minor difference in the angle of the aft
most bulkhead translates to the mismatch you (and I and others) run into.
That angle is determined by a couple holes only inches apart. Try shifting
the angle of that aft bulkhead and you'll see the fix come into place.

I documented my fix at: http://mae.ucdavis.edu/ransom/Murphy/11.06/

-Ben



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