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  #1  
Old 11-16-2022, 03:11 PM
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claycookiemonster claycookiemonster is offline
 
Join Date: Oct 2007
Location: Midway, UT
Posts: 555
Default W728 Reinforcing Strip at Wing Tip with platenuts?

I am about to finish the removable wingtip preparation. What is the consensus on the W-728 reinforcing strip if installing platenuts for a removable tip?

Drawing 17A shows a W-728 reinforcing strip on the inside of the wingtip flange to receive either permanently installed rivets, or rivets from platenuts on removable wingtips. The verbage on page 7-13 says the reinforcing strip is not necessary with platenuts and the removable tips.

Do I believe the words (no reinforcing strip) or the drawings (reinforcing strip either way)?
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  #2  
Old 11-16-2022, 03:33 PM
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I did not use the strip on two RVs with anchornuts.
No issues.
Did us soft rivets on #2 to help prevent crushing the glass.
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Venice, FL

N164WM RV-6A Slider/O-360/FP Sold 4/2022
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  #3  
Old 11-16-2022, 03:41 PM
Ralph Inkster Ralph Inkster is offline
 
Join Date: Feb 2008
Location: Calgary, Alberta
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Default

I rivet the nutplates to the reinforcement strip, than rivet the strip to the fiberglass flange between every second or third nut plate.
Worked fine for me, but any of the three methods would be fine.
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  #4  
Old 11-16-2022, 03:44 PM
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wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 5,866
Default Nutplates

The nutplates are pretty solid, but a strip would certainly help. It's easy to install a thin strip bonded with G-Flex.
I found it works for me to bond reinforcement strips before drilling for nutplates or countersinking for rivets.
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I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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  #5  
Old 11-16-2022, 07:06 PM
BMallory BMallory is offline
 
Join Date: Nov 2019
Location: Guyton, Georgia
Posts: 15
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I did the strip install with A rivets which worked well for me. The AD'S rivets are prone to crack thin fiberglass in my experience.
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  #6  
Old 11-16-2022, 07:29 PM
Kyle Boatright Kyle Boatright is online now
 
Join Date: Aug 2005
Location: Atlanta, GA
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I used a strip on the -6. Rethought it and just riveted the nut plates directly to the tips on the -10. I donít think the strip is necessary - itís just extra work and weight.
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2001 RV-6 N46KB
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  #7  
Old 11-17-2022, 04:47 AM
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rv8ch rv8ch is offline
 
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Quote:
Originally Posted by fl-mike View Post
I did not use the strip on two RVs with anchornuts.
No issues.
Did us soft rivets on #2 to help prevent crushing the glass.
Same here - and I used floating nutplates - worked fine.
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  #8  
Old 11-18-2022, 01:32 PM
Chipper G Chipper G is offline
 
Join Date: May 2020
Location: Savannah GA
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anyone have the issue where the wingtip sets about a 1/4 further aft then the aileron does?
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  #9  
Old 11-18-2022, 01:39 PM
Kyle Boatright Kyle Boatright is online now
 
Join Date: Aug 2005
Location: Atlanta, GA
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Quote:
Originally Posted by Chipper G View Post
anyone have the issue where the wingtip sets about a 1/4 further aft then the aileron does?
Happens all the time. A straightedge and a cutoff wheel will make quick work of it.
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2001 RV-6 N46KB
2019? (actually 2022) RV-10 N46BX
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  #10  
Old 11-18-2022, 02:57 PM
Chipper G Chipper G is offline
 
Join Date: May 2020
Location: Savannah GA
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Quote:
Originally Posted by Kyle Boatright View Post
Happens all the time. A straightedge and a cutoff wheel will make quick work of it.
Thank you for the info
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