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FLUTING Ribs to match desired taper of VS

 
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gareywittich2000(at)yahoo
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PostPosted: Thu Sep 06, 2007 12:03 pm    Post subject: FLUTING Ribs to match desired taper of VS Reply with quote
Greetings:

Have an '"older" empennage and instructions dating
back to 1999. Understand RV-7, 8 and 9 have the same
Vert Stabilizer. Is there anything in the "Newer
Instructions" about about tapering (angling) the
flanges of the VS Ribs to match the desired contour
(taper) of the VS ???

Thanks, Garey

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medorrisjr(at)hotmail.com
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PostPosted: Thu Sep 06, 2007 2:11 pm    Post subject: FLUTING Ribs to match desired taper of VS Reply with quote
I think the only thing you should be doing to the flanges is making sure they are 90 degrees to the rib AND fluting them to make sure the ribs, laying flat, are parallel to the flat surface (no humps or "ski jumps", etc). Not sure what you mean by angling to match the contour of the VS. The VS should take the contour of the rib. Maybe I'm missing something.
Marvin



Quote:
Date: Thu, 6 Sep 2007 13:03:05 -0700
From: gareywittich2000(at)yahoo.com
Subject: FLUTING Ribs to match desired taper of VS
To: rv7-list(at)matronics.com; rv8-list(at)matronics.com; rv9-list(at)matronics.com

--> RV7-List message posted by: Garey Wittich <gareywittich2000(at)yahoo.com>

Greetings:

Have an '"older" empennage and instructions dating
back to 1999. Understand RV-7, 8 and 9 have the same
Vert Stabilizer. Is there anything in the "Newer
Instructions" about about tapering (angling) the
flanges of the VS Ribs to match the desired contour
(taper) of the VS ???

Thanks, Garey

&g========================>

Quote:



[quote][b]

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truflite(at)yahoo.com
Guest
PostPosted: Thu Sep 06, 2007 4:49 pm    Post subject: FLUTING Ribs to match desired taper of VS Reply with quote
You will need to change the angle of the flange
slightly. When building mine, I determined that from
the spar rearward, I would be good to go bending the
flange at 90 degrees. From the spar forward, I used a
flashlight shining through the skin onto the rib to
see if I needed to open the bend slightly. If you see
light between the rib and skin, open the bend at that
point. Not much bend is needed, but I found a little
helped a lot.

Dave Nellis

--- Marvin Dorris Jr <medorrisjr(at)hotmail.com> wrote:

Quote:

I think the only thing you should be doing to the
flanges is making sure they are 90 degrees to the
rib AND fluting them to make sure the ribs, laying
flat, are parallel to the flat surface (no humps or
"ski jumps", etc). Not sure what you mean by
angling to match the contour of the VS. The VS
should take the contour of the rib. Maybe I'm
missing something.
Marvin

> Date: Thu, 6 Sep 2007 13:03:05 -0700> From:
gareywittich2000(at)yahoo.com> Subject: RV7-List:
FLUTING Ribs to match desired taper of VS> To:
rv7-list(at)matronics.com; rv8-list(at)matronics.com;
rv9-list(at)matronics.com> > --> RV7-List message
posted by: Garey Wittich
<gareywittich2000(at)yahoo.com>> > Greetings:> > Have
an '"older" empennage and instructions dating> back
to 1999. Understand RV-7, 8 and 9 have the same>
Vert Stabilizer. Is there anything in the "Newer>
Instructions" about about tapering (angling) the>
flanges of the VS Ribs to match the desired contour>
(taper) of the VS ???> > Thanks, Ga==============> >
>

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dhall(at)donka.net
Guest
PostPosted: Mon Sep 10, 2007 8:34 pm    Post subject: FLUTING Ribs to match desired taper of VS Reply with quote
No. The instructions don't say to match contour. 90 deg works.
Matching the contour really comes into play on the fuse bulkheads..

******************************************
Don Hall
N517DG (registered)
rv7 fuselage
http://rv7.donka.net
******************************************

--

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