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  #1  
Old 09-03-2012, 07:14 PM
denbobp denbobp is offline
 
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Default Tin canning on belly

After all I did to make things according to plan, I have two areas of sloppy looking aluminum skin. I think the area on bottom of fuselage between frame F808 and F809 can be fixed by making that an antenna doubler area but I don't have an idea for the area next to one of the main gear weldmont area. Even after relieving the area around where the gear comes through the skin it was wasted effort. The other thought I had was to spray expanding foam into the area but open to suggestions. Thanks for any ideas in advance.
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  #2  
Old 09-03-2012, 08:11 PM
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Mel Mel is offline
 
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Do not use expanding foam. It is porous and will absorb water. It will hold the water and cause corrosion.
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  #3  
Old 09-04-2012, 07:23 AM
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IronDawg IronDawg is offline
 
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I have the same issue on the belly. I was considering making a couple reinforcement "ribs" out of angle and riveting them between the bulkheads and onto the skin. Any thoughts?

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  #4  
Old 09-04-2012, 07:54 AM
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DanH DanH is offline
 
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Quote:
Originally Posted by IronDawg View Post
I have the same issue on the belly. I was considering making a couple reinforcement "ribs" out of angle and riveting them between the bulkheads and onto the skin. Any thoughts?
I think there would be a high probability of skin cracking at the end rivet of the reinforcement.
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  #5  
Old 09-04-2012, 10:15 AM
chaskuss chaskuss is offline
 
Join Date: Mar 2005
Location: SE Florida
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Quote:
Originally Posted by denbobp View Post
After all I did to make things according to plan, I have two areas of sloppy looking aluminum skin. I think the area on bottom of fuselage between frame F808 and F809 can be fixed by making that an antenna doubler area but I don't have an idea for the area next to one of the main gear weldmont area. Even after relieving the area around where the gear comes through the skin it was wasted effort. The other thought I had was to spray expanding foam into the area but open to suggestions. Thanks for any ideas in advance.
Denny,
This has been discussed here before. At the moment, I can not find the thread relating to this issue on the RV8 and 8A, but I know it exists somewhere. I did not have any luck using the search engine.
I did find the thread linked below relating to the same issue on an RV7

http://www.vansairforce.com/communit...canning&page=3

I hope this helps.

Charlie
PS The thread I can not find, related to a lister reporting that his RV8 would make an ungodly noise, emanating from the tail cone during stall maneuvers. He determined that the tail cone belly skin would oil can, causing the noise.

Last edited by chaskuss : 09-04-2012 at 10:18 AM. Reason: Added PS
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  #6  
Old 09-04-2012, 10:46 AM
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larrynew larrynew is offline
 
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Here are several threads with RV-8 oil canning. If the link doesn't work, just paste this into Google: site:vansairforce.com rv-8 oil canning

site:vansairforce.com rv-8 oil canning
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Last edited by larrynew : 09-04-2012 at 10:49 AM.
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