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  #1  
Old 08-19-2018, 04:48 PM
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PokePilot PokePilot is offline
 
Join Date: Jun 2015
Location: Bentonville, AR
Posts: 13
Default Some minor VS skin damage...

I'm in the process of setting up my workshop and I've been keeping my skins in the box in which they came. Well, I noticed a bend in the lower right corner of my VS skin and discovered that it had punched right into the side of the cardboard, resulting in an about 8 degree bend through the first prepunched hole. An amazing discovery when I just got the kit a week and a half ago and haven't even received my tool kit yet

I took a wood block and a mallet to it and gently tapped it back into shape, but there's still a tiny amount of deformation to that corner. I don't think it will affect anything structurally – it's bent slightly inward toward where the VS spar will be and the damage is really only visible from a distance if the light catches it. If anything I think it's just a cosmetic issue at this point.

I know the usual advice is to "flatten it out and build on", but does anyone recommend replacing the skin? For $85 plus shipping I don't know if it's worth scrapping an otherwise perfect skin for one tiny corner, but I'm open to suggestions.







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RV-7 #74747– empennage in progress
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  #2  
Old 08-19-2018, 05:46 PM
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Mark Dickens Mark Dickens is offline
 
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Location: Collierville, TN (KFYE)
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Default

You're right...build on!
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  #3  
Old 08-19-2018, 05:54 PM
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Larry DeCamp Larry DeCamp is offline
 
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Default Cosmetic

Bend it flat and move on. Thats heavy fill primer and sanding block is for !
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  #4  
Old 08-19-2018, 06:00 PM
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jcarne jcarne is offline
 
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Location: Worland, Wyoming
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Default

I agree, I would not replace that. Unless of course you plan on polishing but idk who actually does that sort of thing.
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  #5  
Old 08-19-2018, 06:39 PM
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mfleming mfleming is offline
 
Join Date: Sep 2016
Location: Joseph, Oregon
Posts: 289
Default Repair technique

Here’s a video of how I worked a similar crease out of some sheet metal.

https://m.youtube.com/watch?v=odRe9k...ature=youtu.be
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RV-7 Slider #74572
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  #6  
Old 08-19-2018, 06:43 PM
David Paule David Paule is offline
 
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Location: Boulder, CO
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Gently bend it out. You should avoid a hard edge for whatever you're using on the convex side of the bend. A nice radiused block of wood is good, with the radius under the bend and shaped to match it. I'd use another block on the concave side to - as I said - gently flatten the skin. Use your hand to press the second block as needed. No fancy tools for this one.

If ultimately you're still unhappy with it, check to see if this part is hidden under the tail fairing. If so, build on.

Otherwise, if you run out of any local resources, sure, go ahead and replace it. Us RV builders often do that, or at least I seem to. I've got a whole area in my garage attic reserved for scrap.

Dave
Skinning my RV-3B fuselage
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  #7  
Old 08-19-2018, 06:48 PM
PilotjohnS PilotjohnS is offline
 
Join Date: Jan 2016
Location: Los Angeles
Posts: 549
Default Dimple

I think when you dimple that hole a lot of the creAse will come out. Also if you edge break the edge will stay down too. I think it will be very hard to see on the finished bird. JMHO
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WARNING! Information presented in this post is my opinion. All users of info have sole responsibility for determining accuracy or suitability for their use.

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  #8  
Old 08-19-2018, 07:13 PM
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PokePilot PokePilot is offline
 
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Location: Bentonville, AR
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Default

Quote:
Originally Posted by David Paule View Post
Gently bend it out. You should avoid a hard edge for whatever you're using on the convex side of the bend. A nice radiused block of wood is good, with the radius under the bend and shaped to match it. I'd use another block on the concave side to - as I said - gently flatten the skin. Use your hand to press the second block as needed. No fancy tools for this one.

If ultimately you're still unhappy with it, check to see if this part is hidden under the tail fairing. If so, build on.

Otherwise, if you run out of any local resources, sure, go ahead and replace it. Us RV builders often do that, or at least I seem to. I've got a whole area in my garage attic reserved for scrap.

Dave
Skinning my RV-3B fuselage
Ah, I didn't even think about the tail fairing. The damage is already pretty difficult to see, but it looks a lot worse in the pictures than it does in person. I'm pretty sure most of it will be hidden by the fairing and paint. I might play with it a bit more to flatten it further but ultimately I think I'll keep the skin. Thanks!
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  #9  
Old 08-20-2018, 09:38 AM
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airguy airguy is offline
 
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Location: Garden City, Tx
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Build on. I've got worse than that on my airplane, a good many of us do.
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  #10  
Old 08-20-2018, 10:22 AM
mturnerb mturnerb is online now
 
Join Date: Apr 2015
Location: Ponte Vedra, FL
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Default

I wish I could say I have no "dings" on my build but it would be a lie. A few errant hits with the rivet gun here and there. Bondo will be my friend.
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