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10-05-2008, 09:51 PM
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#1 |
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Gettin' Lower!
 Join Date: Jul 2007
Location: annapolis, md
Posts: 68
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Exhaust/Belly covering
Now that I've lost belly covering twice, I'm wondering if I have a unique situation or just cant think of the obvious solution.
Plane is an SD 260 35% with a ZDZ 100 on JMB cannisters. I have a well baffled engine and run all the cowl air out right behind the LG, which is where the cannisters end. At first when I lost the stock covering I thought I had finally had gotten the motor/exhaust hot enough to soften the Ultracote glue and have it pull lose on the forward edge of the rear of the exit hole. Now that I replaced the dark blue covering with white, I see that actual exhaust is hitting the covering edge in question which now that I think of it is most likely from either from hovering or high alpha flying. So the question is how to secure the covering, protect it or in general, solve the problem |
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10-05-2008, 09:58 PM
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#2 |
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Dont touch my taco!!!
 
Join Date: Apr 2008
Location: United States, OH, Trumbull
Posts: 97
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Re: Exhaust/Belly covering
Can you post some pics of the bottom of your plane including the exhaust and can tunnel?
Jon
__________________
Jon Soda Herc fixer/Metal twister USAF Structural Technician |
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10-05-2008, 10:01 PM
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#3 |
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Bad-ass Super Contributer!
Join Date: Jul 2006
Location: California
Posts: 4,323
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Re: Exhaust/Belly covering
How you have the edges of the covering laid up and lapped is everything. If the open edges face forward you're forever doomed. If the laps are to the rear of the plane they normally stay just fine. You should not have an open edge facing into the wind or where the exhaust blast can impact it.
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10-05-2008, 10:02 PM
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#4 |
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Bad-ass Super Contributer!
 
Join Date: Nov 2007
Location: Port Orchard, WA
Age: 61
Posts: 6,864
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Re: Exhaust/Belly covering
You could try a couple of layers of 3M aluminum tape.
__________________
 http://www.southeastrcengines.com http://www.vessaero.com Remember every second of every day there are thousands of men and women giving of their lives to keep you safe. Never forget them for they never forget you!! |
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10-05-2008, 10:53 PM
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#5 | ||||||||||||||||||
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Gettin' Lower!
Join Date: Jul 2007
Location: annapolis, md
Posts: 68
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Re: Exhaust/Belly covering
Excellent suggestion, I can wrap it around the "offending" edge and stick it back on the covering on the inside which would double the holding power of the tape.
It just so happens I have lots of it too.
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10-06-2008, 05:45 AM
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#6 |
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Bad-ass Super Contributer!
Join Date: Nov 2007
Location: Port Orchard, WA
Age: 61
Posts: 6,864
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Re: Exhaust/Belly covering
I've used it a lot on the inside of cowls as a heat shield and it works great.
__________________
http://www.southeastrcengines.com http://www.vessaero.com Remember every second of every day there are thousands of men and women giving of their lives to keep you safe. Never forget them for they never forget you!! |
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