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Stab help

 
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flystol(at)bluebottle.com
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PostPosted: Sun May 13, 2007 1:31 pm    Post subject: Stab help Reply with quote
Hello All,

Ocasionally poster, early in the process 601XL builder here. I would like some advice as I try to move forward and finish the tail section kit.
After weeks(!) of checking and rechecking alignment, I finally jumped in and drilled the holes for the top skin to skeleton on the stab. Since this was a kit, the skin pilot holes were already drilled. So far so good.
Next I try to position and align the end ribs - everything looks good - leading snug with the end of the rib - and so I drill through the skin holes again. This is the kit skin with pre-drilled holes and the kit end rib - no problem , right? Wrong! One of the holes goes right into the crimped area of the rib. I look at the drawings and they show 13 holes, the actual rib and skin have 12 holes!
Has anyone else had this experience? Can I get by with a rivet in the side (not all the way at the bottom) of one of the crimped areas on the end rib flange?

Do not archive

Ron
San Diego 601XL

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Ron Lendon



Joined: 10 Jan 2006
Posts: 685
Location: Clinton Twp., MI
PostPosted: Sun May 13, 2007 2:35 pm    Post subject: Re: Stab help Reply with quote
Flatten out the crimp in the rib so the rivet will pull tight, and put another crimp in between the rivet holes. Or maybe the skin is on backwards?

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TxDave



Joined: 22 Jul 2006
Posts: 168
Location: Temple, TX
PostPosted: Sun May 13, 2007 4:15 pm    Post subject: Re: Stab help Reply with quote
Hey Ron in San Diego,

Your construction manual, on page 10, says, "never count the + or X marking on the drawings". Don't base the number of rivet holes on what the plans show. If you follow Ron's advice for the crimp your stab will be just fine. Have fun!

Dave Clay
Temple, TX
http://www.daves601xl.com

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Tim Juhl



Joined: 21 Mar 2006
Posts: 488
Location: "Thumb" of Michigan
PostPosted: Sun May 13, 2007 4:20 pm    Post subject: Re: Stab help Reply with quote
Word to the wise...... make sure there is no twist in the stab after you pull the skin around and am preparing to drill into the skeleton. Read a little further along in the pictorial guide and it tells about checking for twist by attaching angles to the end ribs and using a spirit level. A little jig would help.

Tim

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craig(at)craigandjean.com
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PostPosted: Sun May 13, 2007 6:47 pm    Post subject: Stab help Reply with quote
Quote:
Your construction manual, on page 10, says, "never count the + or X
marking on the drawings". Don't base the number of rivet holes on what the

plans show. If you follow Ron's advice for the crimp your stab will be just
fine. Have fun!

But the construction standards also states "The number of rivets is given in
digits". Page 6T2 dated 03/04 says "A4 pitch 35 (13 rivets A4) end rib to
skin 6T1-1"

-- Craig

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