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All Forums >> RC Airplanes >> Aerodynamics >> RE: tail heavy wants to roll?
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RE: tail heavy wants to roll? - 11/18/2012 9:04 PM   
Lnewqban



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quote:

ORIGINAL: guver
The acro-wot when inverted flies pretty nicely and requires just a little bit of down.

That is the solution to your problem: trim some elevator down and fly her mostly inverted.

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RE: tail heavy wants to roll? - 11/19/2012 4:50 AM   
combatpigg



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quote:

ORIGINAL: Lnewqban


quote:

ORIGINAL: guver
The acro-wot when inverted flies pretty nicely and requires just a little bit of down.

That is the solution to your problem: trim some elevator down and fly her mostly inverted.

It sounds like a top heavy design. A quick experiment would be to mount some weight below the plane, just to see if it improves the roll stability when right side up.
Here is a top heavy design of mine. I flew it a few times, then "decomissioned" it.
The 24 inch span was overmatched by all of the bulk and side area that sat above the wing. I never did get the nerve to fly it inverted, but maybe that would be fun to try next summer..?
http://www.youtube.com/watch?v=eGZu4UEuR4k&feature=share&list=UUvajm0pYeG7PvspskjQLq9A

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RE: tail heavy wants to roll? - 11/19/2012 11:48 AM   
AA5BY


 

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Status: offline 		Ya should have tried inverted.... if similar to my Seagull Spacewalker, inverted suffers no adverse rolling. All the top heavy is then on the bottom.

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RE: tail heavy wants to roll? - 11/20/2012 2:44 AM   
Lnewqban



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quote:

ORIGINAL: combatpigg
Here is a top heavy design of mine. I flew it a few times, then ''decomissioned'' it.


You have amazing eyes !!

At that speed and size, I wouldn't be able to recognize top or bottom,.............nice flying!

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RE: tail heavy wants to roll? - 11/20/2012 3:32 AM   
combatpigg



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Status: online 		Thanks, but the camera "footage" makes it look harder to see than it really is.
I wonder how it would handle if an inch or 2 was cut off the fin...?


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