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stabilizer skin alignment

 
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rcarsey1



Joined: 02 Aug 2008
Posts: 1

PostPosted: Sat Aug 02, 2008 6:58 pm    Post subject: stabilizer skin alignment Reply with quote

So I am at that point where i'm attempting to fit my pre-drilled skin to the skeleton ( front/rear spar and 6 ribs)...

I'm basically having trouble lining up all the holes. I did find that towards the outside of the stabilizer, the two spars are drawn in, closer to each other (by about 4mm or so if i remember correctly) -- due to ribs 1 & 6 not having a spar doubler underneath it.

I have followed the directions closely -- there is no shim to go underneath these ribs.. how have you dealt with this? when looking at the edge of the skin laying on the skeleton, its clear that the spar bows outwards in the center. do i straighten out the spar somehow? how? or do i just like up the two holes at either end of the spar.. clamp.. and start drilling?


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danny(at)offill.com
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PostPosted: Sat Aug 02, 2008 8:16 pm    Post subject: stabilizer skin alignment Reply with quote

I'm at the same point and have the same question.

Not sure how to move on.

Danny

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scottbevier



Joined: 19 Jun 2007
Posts: 8

PostPosted: Sun Aug 03, 2008 5:24 am    Post subject: stabilizer skin alignment Reply with quote

Danny,

Try making some shims from 0.040 6061-T6. My spars were also bowed slightly as you described.
I inserted a picture below. If you can’t see it, try viewing the email as HTML, or email me off list and I can send you the file.
The two parts in the center of the picture are the attachment doublers, not shims.

Scott
Ke4hrh(at)comcast.net

[img]cid:image003.jpg(at)01C8F54A.9E252A80[/img]

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danny(at)offill.com
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PostPosted: Sun Aug 03, 2008 2:38 pm    Post subject: stabilizer skin alignment Reply with quote

Thanks Scott, I’ll give that a try.

Danny

From: owner-zenith601-list-server(at)matronics.com [mailto:owner-zenith601-list-server(at)matronics.com] On Behalf Of Scott E Bevier
Sent: Sunday, August 03, 2008 8:24 AM
To: zenith601-list(at)matronics.com
Subject: RE: stabilizer skin alignment



Danny,

Try making some shims from 0.040 6061-T6. My spars were also bowed slightly as you described.
I inserted a picture below. If you can’t see it, try viewing the email as HTML, or email me off list and I can send you the file.
The two parts in the center of the picture are the attachment doublers, not shims.

Scott
Ke4hrh(at)comcast.net

[img]cid:image001.jpg(at)01C8F58F.B546E5B0[/img]

--


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countzero



Joined: 25 Oct 2007
Posts: 25

PostPosted: Mon Aug 04, 2008 4:55 am    Post subject: Re: stabilizer skin alignment Reply with quote

I put in shims where the two outboard ribs attach to the spar.

I also found that the precut slots for front attachments needed to be ~3mm longer before I could get the pre-drilled holes on BOTH sides of the stab to align with the skeleton. Just check where the holes on the top side are going to be before you drill the bottom!!

Matt also appeared to be having a similar issue with his pre-drilled skin and rib/spar alignment http://www.zodiacxl.com/1%20Horizontal%20Stab.html

Rob


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