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Old 10-27-2018, 07:40 AM
pilot2512 pilot2512 is offline
Join Date: Aug 2007
Location: Spring, TX
Posts: 413
Default wing tip reinforcement strip

I finally got my first wingtip all lined up and drilled for nut plates. According to the plans there is a reinforcement strip needed if you use pop rivets but not needed for nut plates. Some builder sites I've seen still use the reinforcement strip with the nut plates. Anybody have an issues with the nut plates and no reinforcement strip.


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Old 10-27-2018, 07:54 AM
Mel's Avatar
Mel Mel is offline
Join Date: Mar 2005
Location: Dallas area
Posts: 10,414

The reinforcement is needed for pop rivets because the small round "shop head" can pull through the fiberglass quite easily. The nut-plate has a much larger footprint. So the reinforcement is not needed.
Mel Asberry..DAR since last century
A&P/BGI/EAA (LifeTime) Tech Counselor/Flight Advisor/Nat'l Test Pilot School
Specializing in Amateur-Built and Light-Sport Aircraft
North Texas (8TA5)
RV-6 Flying since 1993, 172hp O-320, 3-Blade Catto (since 2003)Sold
Legend Cub purchased 12/2017
FRIEND of the RV-1
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Old 10-27-2018, 08:19 AM
mike newall's Avatar
mike newall mike newall is offline
Join Date: Jan 2005
Location: Yorkshire, England
Posts: 1,836

If you are on batwing tips, you may also want to consider some spanwise reinforcing using 1" square blue foam glassed in with deck cloth.

When you come to pushing and pulling your aeroplane when finished, it stops the tips deforming.

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