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  #1  
Old 09-18-2021, 12:32 PM
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msstahl msstahl is offline
 
Join Date: Mar 2020
Location: Murray, Nebraska
Posts: 17
Angry Bottom wing skin rivets

Anybody run into an clearance issue between the aileron hinge service bulletin angle and a rivet that attaches the bottom skin? Did I miss a step somewhere?

What is the best way to overcome the interference?
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  #2  
Old 09-18-2021, 12:40 PM
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N804RV N804RV is offline
 
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Location: Mount Vernon, Wa
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I notched the flange of that one angle just a bit, and substituted pull rivets for the 2 trailing edge skin rivets that the SB added pieces interfere with.
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  #3  
Old 09-18-2021, 01:04 PM
FlyGuy65 FlyGuy65 is offline
 
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Location: Houston (Kingwood), TX
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Same. Caught me by surprise on the left wing, prepared for it on the right.
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  #4  
Old 09-18-2021, 05:10 PM
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msstahl msstahl is offline
 
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Thanks for the tips, Iím sure there will be a few more surprises that catch up to me!
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  #5  
Old 09-19-2021, 08:46 AM
JDA_BTR JDA_BTR is offline
 
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Location: Colorado Springs, CO
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What pulled rivets did you use?
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  #6  
Old 09-19-2021, 09:21 AM
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msstahl msstahl is offline
 
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Iím planning on opening the holes up slightly and using MK-319-BS rivets.
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  #7  
Old 09-19-2021, 11:27 AM
FlyGuy65 FlyGuy65 is offline
 
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MK-319 as well. Been using that rivet as a substitute for 3/32 rivets when needed. Going to order extras with the next Vanís order.
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  #8  
Old 09-19-2021, 07:06 PM
dmn056 dmn056 is offline
 
Join Date: Aug 2014
Location: Sydney, Australia
Posts: 44
Default Solid rivet options

It's not easy, but it is possible to do these with solid rivets.

I cut the flanges on the reinforcement angles back at 45 deg, since those bits of the flange aren't doing anything useful from a structural point of view ("adding lightness").

I was then able to just get the toe of a small bucking bar in between the angle's flange and the rivet shank. Took me a few tries, including drill-outs, but it did work ok.

If you don't want to use solid rivets, an alternative to the MK319BS is a Cherrymax CR-3214. These are a blind fastener equivalent to the NAS1097 "oops" rivets.
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  #9  
Old 09-20-2021, 05:33 PM
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msstahl msstahl is offline
 
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Thanks Dan, I'll give the bracket modification on my left wing a try and see where it takes me.
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  #10  
Old 09-20-2021, 06:24 PM
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B6*P B6*P is offline
 
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Thanks for the heads-up. I'm getting ready to install the SB and had not caught the interference yet.
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