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  #1  
Old 01-18-2018, 07:29 AM
N329JR's Avatar
N329JR N329JR is offline
 
Join Date: Dec 2014
Location: Sharpsburg, MD
Posts: 32
Default Wing upper skin(s) trailing edge turned up at rear spar

I believe that I have seen a post or two on this issue previously.
I have riveted the the upper skins on recently and see that the skins trailing edge at the rear spar is turned up some amount.
I am wondering if all builders are running into this issue and are dealing with it by making a slotted bending block and bending the skin/rear spar flange combination back down flush.
Thanks for any input.
Ian
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  #2  
Old 01-18-2018, 08:00 AM
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The infamous "ski-jump".
Vans has a tool you can borrow to fix this. Works well.
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Venice, FL
RV-6A. Mattituck TMX O-360, FP, GRT Sport EFIS
N164WM
N184WM reserved (RV-8)....tail kit done, slow-build wing done, slow-build fuselage started.
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  #3  
Old 01-18-2018, 08:32 AM
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N329JR N329JR is offline
 
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I see that "Ski Jump" is the key search phrase for this issue.
Thanks.
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  #4  
Old 01-18-2018, 08:58 PM
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here's the Van's tool and a before and after. Use scraps of aluminum to protect the skin (like in the second picture), rear spar rivets, and spar flange or you'll gouge them when you do the bend.





before and after:
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Mike W
Venice, FL
RV-6A. Mattituck TMX O-360, FP, GRT Sport EFIS
N164WM
N184WM reserved (RV-8)....tail kit done, slow-build wing done, slow-build fuselage started.
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  #5  
Old 01-18-2018, 09:23 PM
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Join Date: Nov 2012
Location: Half Moon Bay, CA
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I borrowed one from Mike Cencula here on VAF -- it worked great!

See below for photos:

http://www.mykitlog.com/users/displa...g=218568&row=9

http://www.mykitlog.com/users/displa...g=242664&row=2
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