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  #1  
Old 04-12-2018, 04:53 PM
mfleming's Avatar
mfleming mfleming is offline
 
Join Date: Sep 2016
Location: Joseph, Oregon
Posts: 177
Default -7 F-7114 Gusset Fit

Im fitting the F-7114 fuselage gussets.




The right side install was easy but the left side gusset is obviously ill fitting. I read somewhere on here that Van's say's this is a common problem and to either make the holes bigger or relive some metal on the side that contacts the F-7101 web.

Making the holes bigger seems wrong...But relieving the side seems like that would be a lot of metal to make a difference

Van's tech support crew is apparently at Sun & Fun so looking to confirm the above mentioned fixes or looking for other ideas.

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Joseph, OR
sagriver at icloud dot com

RV-7 Slider #74572
Empennage (sans fiberglass)
Ailerons and flaps complete.
Wings done (sans fiberglass)
Started on QB fuselage
Donated 2017
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  #2  
Old 04-12-2018, 08:34 PM
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longranger longranger is offline
 
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Location: 45G, Brighton, MI
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I just went through this a couple of weeks ago. Mine initially fit about like yours. Oddly enough, I also had more trouble with the left one than the right. I had to close the longitudinal angle a bit, and a took a few turns with an edge deburring tool in the bolt holes. I didn’t remove any metal from the side of the flange, but I did have to shorten the aft end to clear an existing rivet. The top photo of my build log that day shows the fit before drilling for the 5 AN3 bolts, and the next day’s entry shows the fit after.
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Miles (VAF# 1238, Paid up as of 12/2016)
RV-7 TU 904KM (reserved)
Wings Fitted and Finish Kit on order

Construction Log
Picasa: Empennage Album, Wings Album, Fuselage Album

1955 Cessna 170B flying since 1982

'To get something you never had, you have to do something you never did.' -Unk.

Last edited by longranger : 04-12-2018 at 08:40 PM.
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  #3  
Old 04-12-2018, 08:46 PM
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mfleming mfleming is offline
 
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Location: Joseph, Oregon
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Quote:
Originally Posted by longranger View Post
I just went through this a couple of weeks ago. Mine initially fit about like yours. Oddly enough, I also had more trouble with the left one than the right. I had to close the longitudinal angle a bit, and a took a few turns with an edge deburring tool in the bolt holes. I didnít remove any metal from the side of the flange, but I did have to shorten the aft end to clear an existing rivet. The top photo of my build log that day shows the fit before drilling for the 5 AN3 bolts, and the next dayís entry shows the fit after.

So I'm not sure what "close the longitudinal angle" means... By slightly enlarging the holes, this lets the angle to be closed??
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Michael Fleming
Joseph, OR
sagriver at icloud dot com

RV-7 Slider #74572
Empennage (sans fiberglass)
Ailerons and flaps complete.
Wings done (sans fiberglass)
Started on QB fuselage
Donated 2017
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  #4  
Old 04-12-2018, 08:49 PM
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longranger longranger is offline
 
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Location: 45G, Brighton, MI
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Quote:
Originally Posted by mfleming View Post
So I'm not sure what "close the longitudinal angle" means... By slightly enlarging the holes, this lets the angle to be closed??
I bent the flange inboard slightly.
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Miles (VAF# 1238, Paid up as of 12/2016)
RV-7 TU 904KM (reserved)
Wings Fitted and Finish Kit on order

Construction Log
Picasa: Empennage Album, Wings Album, Fuselage Album

1955 Cessna 170B flying since 1982

'To get something you never had, you have to do something you never did.' -Unk.
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  #5  
Old 04-12-2018, 09:01 PM
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mfleming mfleming is offline
 
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Location: Joseph, Oregon
Posts: 177
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Quote:
Originally Posted by longranger View Post
I bent the flange inboard slightly.
Very Good...I'm a little slow today.
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Michael Fleming
Joseph, OR
sagriver at icloud dot com

RV-7 Slider #74572
Empennage (sans fiberglass)
Ailerons and flaps complete.
Wings done (sans fiberglass)
Started on QB fuselage
Donated 2017
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  #6  
Old 04-13-2018, 02:37 AM
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Z-EDD Z-EDD is offline
 
Join Date: Oct 2013
Location: Harare, Zimbabwe
Posts: 157
Default Adjust the flanges

Same problem, same side! I used the same technique I have on some other flanges to "move" them in or out. These two photos are from the flap ribs but illustrate the technique.
IMG_0890 by Ed Fleming, on Flickr
IMG_0891 by Ed Fleming, on Flickr
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  #7  
Old 04-13-2018, 09:35 AM
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mfleming mfleming is offline
 
Join Date: Sep 2016
Location: Joseph, Oregon
Posts: 177
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Quote:
Originally Posted by Z-EDD View Post
Same problem, same side! I used the same technique I have on some other flanges to "move" them in or out. These two photos are from the flap ribs but illustrate the technique.
IMG_0890 by Ed Fleming, on Flickr
IMG_0891 by Ed Fleming, on Flickr
Thanks for the photos Ed.
One Fleming helping another from half way around the world.... VAF is great!
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Michael Fleming
Joseph, OR
sagriver at icloud dot com

RV-7 Slider #74572
Empennage (sans fiberglass)
Ailerons and flaps complete.
Wings done (sans fiberglass)
Started on QB fuselage
Donated 2017
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  #8  
Old 04-14-2018, 06:21 AM
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Captain_John Captain_John is offline
 
Join Date: Jan 2005
Location: KPYM
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Default

WOW, that's A LOT of fudge factor!

Mine fit PERFECTLY. I would rather be lucky than good!

Another option is to cut it off entirely and rivet on a piece of angle in it's place.

That could be a good plan "B" if you mess up the re-bending process. Try that first.

Good luck!

You will enjoy the machine when it's done!

CJ
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