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Jeff Rosson
Joined: 29 May 2007
Posts: 9
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 Posted: Mon Jun 11, 2007 4:55 am Post subject: Top VS Rib Won't Fit |
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Hi,
I originally posted this question to the Van's Air Force site, but I didn't have the ability to send in pictures and I just found out I can't post attachements there, so I am bringing the question here.
Here are two pictures to describe my problem with the top rib for the VS fitting into the skin. In one picture, the rib is clecoed to the aft spar and, as you can see, the rib is too long and too wide at the tip to slip into the VS skin. In the video that Van's has for the RV9 empennage, this rib fits inside with no problem.
In the other picture, I have forced the rib inside the skin, and clecoed it in all the way back to the aft spar, including the forward spar, except for the holes in the tab. As shown, the tab had to be bent quite a bit to fit inside, to where the hole in the skin is no where close to the mating with hole on the tab.
To make it fit, it looks like I would have to flatten out the flanges of the tab, then cut back on the tip to reduce the length, then trim the flanges and re-bend them to make the tab narrower.
I don't really see any structural problem to me doing that, but with the way the rest of the parts have been fitting together so nicely, the fact I am having this kind of problem here (and, again, the video shows the rib fitting in quite nicely) makes me question it.
Hope the pictures help. (And I hope I remembered to attach them!)
Thanks,
Jeff
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smittysrv
Joined: 10 Jan 2006
Posts: 67
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aurbo(at)ak.net
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| Posted: Mon Jun 11, 2007 6:18 am Post subject: Top VS Rib Won't Fit |
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Jeff,
First don't start hacking away until your sure. You can make an expensive
mistake real quick.
| Quote: | From the looks of the one picture is does look like something is definitely
wrong. It looks like (at least from my perspective) that you need to do some
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fluting and some trimming on that rib to make it fit.
Make certain that you have the right parts in the right places.
Is the video you got from Van's the one by George Orndorf? George has some
great ideas.
www.rvproject.com/ , This is a good resource site and there are others.
Blue Skies,
Mike Ice
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aurbo(at)ak.net
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| Posted: Mon Jun 11, 2007 6:45 am Post subject: Top VS Rib Won't Fit |
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Jeff,
I just read your post on the VAF.
I would also suggest to you that if your having problems with clecoing to
get a pneumatic cleco tool.
Also, QUICK Build is a great way to go with the wings and fuselage.
Mike Ice
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dthomas773(at)sbcglobal.n
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| Posted: Mon Jun 11, 2007 7:14 am Post subject: Top VS Rib Won't Fit |
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You might try removing the skin from the skeleton,
Cleco the rib in place and see if it fit then.
--- "Michael T. Ice" <aurbo(at)ak.net> wrote:
[quote]
<aurbo(at)ak.net>
Jeff,
I just read your post on the VAF.
I would also suggest to you that if your having
problems with clecoing to
get a pneumatic cleco tool.
Also, QUICK Build is a great way to go with the
wings and fuselage.
Mike Ice
---
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wowens(at)darientel.net
Guest
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| Posted: Mon Jun 11, 2007 10:23 am Post subject: Top VS Rib Won't Fit |
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Peeling the blue afterbirth off may help some
Wayne
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Bob Perkinson
Joined: 10 Jan 2006
Posts: 51
Location: Hendersonville, Tennessee
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| Posted: Tue Jun 19, 2007 12:36 pm Post subject: Top VS Rib Won't Fit |
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Jeff
| Quote: | From the photos it looks like you have not fluted the rib. Get a flexible
metal ruler and eyeball the pre-punched holes. You might find that the line
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of holes is not in a straight line but produce a slightly curved line.
Fluting the flange will draw the holes into a straight line and reduce the
overall length of the rib slightly.
Bob Perkinson
Hendersonville, TN.
RV9 N658RP Reserved
If nothing changes
Nothing changes
In the other picture, I have forced the rib inside the skin, and clecoed it
in all the way back to the aft spar, including the forward spar, except for
the holes in the tab. As shown, the tab had to be bent quite a bit to fit
inside, to where the hole in the skin is no where close to the mating with
hole on the tab.
To make it fit, it looks like I would have to flatten out the flanges of the
tab, then cut back on the tip to reduce the length, then trim the flanges
and re-bend them to make the tab narrower.
http://forums.matronics.com/viewtopic.php?p=117768#117768
Attachments:
http://forums.matronics.com//files/vs_rib_2_357.jpg
http://forums.matronics.com//files/vs_rib_1_911.jpg
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