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Supporting Owners, Builders and Pilots of the Thorp T-18 and its variants.
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rhartmaier
 Post subject: Re: Flap construction
PostPosted: Sat May 20, 2017 7:54 am 
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Joined: Thu Nov 24, 2011 8:52 pm
Posts: 31
Location: Central New Jersey
It just occurred to me that if I use .020 for the skins, and .050 for the strip, I get the same dimension as the aileron T.E. I did not realize what a genius I am!


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bfinney
 Post subject: Re: Flap construction
PostPosted: Sat May 20, 2017 12:26 pm 
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Joined: Thu Oct 22, 2009 2:24 pm
Posts: 379
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Location: Auburn, WA USA
It wasn't early, it was 9:30 PM local (west coast).

The flaps are spring loaded up so they could potentially flutter given the right conditions (not enough spring tension for one). Any movable surface has the potential to flutter.

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Bruce Finney
N18JF T-18C #262
Auburn, WA USA


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rhartmaier
 Post subject: Re: Flap construction
PostPosted: Sat May 20, 2017 6:56 pm 
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Joined: Thu Nov 24, 2011 8:52 pm
Posts: 31
Location: Central New Jersey
Thanks for the comment. Good point.....


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James Grahn
 Post subject: Re: Flap construction
PostPosted: Sat May 20, 2017 10:56 pm 
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Joined: Sat Oct 24, 2009 7:16 pm
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.020 skins are fine. .016 is still available but extremely hard to work with. Please use the correct trailing edge strip size.
Cubes


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rhartmaier
 Post subject: Re: Flap construction
PostPosted: Mon May 22, 2017 7:35 am 
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Joined: Thu Nov 24, 2011 8:52 pm
Posts: 31
Location: Central New Jersey
Cubes,

Thanks for the advice. I will go to the airport and cut two .040 T.E. strips today.

Bob


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