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  #1  
Old 02-21-2020, 02:23 PM
Capt_Riney Capt_Riney is offline
 
Join Date: Feb 2015
Location: Danville, Indiana
Posts: 21
Default Tip-up Canopy Question

I'm building an RV-7 with tip-up canopy and have an issue with the WD-716 1/2" tube and the C-702 canopy skin. On each side of the canopy, the outboard 3 or 4 rivet hole locations on the WD-716 tube have a significant gap between the tube and the C-702 skin. Van's says this is "normal" and suggest filling the gap with washers before riveting. However, a couple of the locations have a gap as large as 3/8", and that is a LOT of washers. Just wonder what some of you other builders have done. Thanks.

Mark Rinehart
RV-7 Indianapolis
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Old 02-21-2020, 02:29 PM
TX7A TX7A is offline
 
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Location: Abilene, TX
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Default A couple of threads on the problem...

http://www.vansairforce.com/communit...ad.php?t=16356

http://www.vansairforce.com/communit...ad.php?t=96142
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  #3  
Old 02-21-2020, 03:42 PM
dwranda dwranda is offline
 
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Location: Jamestown,NY
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I used washers then ended up filling in the gap with epoxy so they are hidden. The canopy on these models suck! For such a nicely engineered aircrtaft it's a shame to have this canopy that seems like an intern designed.
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  #4  
Old 02-21-2020, 03:53 PM
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SeanB SeanB is offline
 
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Location: Colorado Springs
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I placed a piece of clear packing tape as a backstop behind the gap. Mixed up flox/epoxy with pigment and made a nice filet. No spacers or washers.
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  #5  
Old 02-21-2020, 04:39 PM
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bruceh bruceh is offline
 
Join Date: Mar 2008
Location: Ramona, CA
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I cut some small tubing segments, filled them with aluminum epoxy putty and so far they have been pretty solid (750+ hours). You could probably use something like JB Weld to hold these in place and fill them.
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  #6  
Old 02-21-2020, 04:59 PM
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scard scard is offline
 
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Location: Cedar Park, TX
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I think I just had the last one or two that I just couldn't make work out with any amount of massaging. I didn't even mess with trying to "fill" the gap. I just put a rivet in the empty holes in the top glair shield and moved on. It has looked fine to me for all these years.
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  #7  
Old 02-21-2020, 07:53 PM
gasman gasman is offline
 
Join Date: Mar 2007
Location: Sonoma County
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This part produced for the RV6,A was a perfect fit, at least for the two that I have done. But when Van's upgraded to the RV7,A something changed and they have yet to correct it.... very sad.

It is a very well known problem, Please fix it.
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Old 02-21-2020, 08:29 PM
nilberg nilberg is offline
 
Join Date: Dec 2012
Location: Katy, TX
Posts: 231
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I asked Vans, during a Q&A session at Oshkosh, if there were any plans to change the 7 tip up design similar to RV-14. The answer was “No”.
Fair enough, they need to look forward ......
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Old 02-21-2020, 08:40 PM
dreed dreed is offline
 
Join Date: Nov 2016
Location: Camas, WA
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As a 7 Slider builder I've cussed plenty, gave my slider decision second thoughts many times having heard how much easier the tipper is... Guess not.

Sorry to hear about the troubles. I am sure once she's flying you'll never look back.
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  #10  
Old 02-22-2020, 05:31 AM
nilberg nilberg is offline
 
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Location: Katy, TX
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I had three rivets on each side to nowhere.
The I stuffed it with flox:

http://www.mykitlog.com/users/displa...=253445&row=57
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