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Hoov330
 Post subject: Aileron Travel
PostPosted: Mon Feb 21, 2011 6:23 pm 
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Can anyone tell me what the Aileron travel is supposed to be?

Thanks

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J. Hoover
N330JH
Yelm, Wa


Last edited by Anonymous on Mon Feb 21, 2011 6:23 pm, edited 1 time in total.

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Rich Brazell
 Post subject: Aileron Travel
PostPosted: Mon Feb 21, 2011 7:53 pm 
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Location: Jamul, CA (San Diego area)
Do uz have a set of plans ? If not go to the Thorplist archives, hit search and type in aileron travel. Bada Big, Bada Boom !

RB


Last edited by admin on Mon Feb 21, 2011 7:53 pm, edited 1 time in total.

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leewwalton
 Post subject: Aileron Travel
PostPosted: Mon Feb 21, 2011 10:18 pm 
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Jerry,

Up 35 deg, down 10 deg. (dwg 520).

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Lee Walton
Houston, TX
N51863,N118LW
KEFD


Last edited by admin on Mon Feb 21, 2011 10:18 pm, edited 1 time in total.

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Hoov330
 Post subject: Aileron Travel
PostPosted: Tue Feb 22, 2011 5:24 pm 
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Thanks Lee, rather than spending 50 mins draggin my plans out of storage I figured Id ask and get a quick reply.

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J. Hoover
N330JH
Yelm, Wa


Last edited by admin on Tue Feb 22, 2011 5:24 pm, edited 1 time in total.

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PanchoGA
 Post subject: Re: Aileron Travel
PostPosted: Wed Sep 11, 2019 7:52 am 
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Joined: Tue Feb 21, 2017 9:54 pm
Posts: 19
Hi All,
I'm building an S18, and having trouble with aileron travel. The push-pull tube to the aileron hits the bottom of the rear spar, limiting the up deflection. Has anyone else seen this problem? What's a solution?
I tried adding spacers between the bottom of the aileron and mast 311. Now the push-pull tube doesn't hit the rear spar, but the push-pull tube is working with a longer arm, which reduces aileron travel. Not much help there.

Thanks,
Pancho
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fytrplt
 Post subject: Re: Aileron Travel
PostPosted: Wed Sep 11, 2019 8:40 am 
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Most of us live with less "up" than the plans call for. Make sure the belcrank is centered before you adjust the aileron push pull tube. The ten degrees down is required. Start from the stick and work outward.

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N711SH
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PanchoGA
 Post subject: Re: Aileron Travel
PostPosted: Wed Sep 11, 2019 9:38 am 
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Interesting. Less up travel will reduce aileron authority. No problems from that?

BTW, my memory failed me concerning the aileron mast part number, it should be 331.
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fytrplt
 Post subject: Re: Aileron Travel
PostPosted: Wed Sep 11, 2019 11:43 am 
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The down aileron is what creates the additional lift to roll the plane. The up aileron creates drag to counter adverse yaw in my humble opinion.

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James Grahn
 Post subject: Re: Aileron Travel
PostPosted: Thu Sep 12, 2019 11:21 pm 
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I’ve been rebuilding and condition inspecting these birds for years. I don’t think I’ve ever seen plus 35, minus 10. Make it do the -10 and try to get +25 and even.
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PanchoGA
 Post subject: Re: Aileron Travel
PostPosted: Fri Sep 13, 2019 7:47 pm 
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-10 and +25 is what I'm seeing. Thanks for the input.
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Unclerap
 Post subject: Re: Aileron Travel
PostPosted: Sat Sep 14, 2019 12:03 pm 
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While on this subject: How many inches of travel stop to stop along the aileron torque tube(s), and also same travel on the elevator tube?

thanks,

Rap

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James Grahn
 Post subject: Re: Aileron Travel
PostPosted: Mon Sep 16, 2019 10:19 pm 
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Not sure why this matters Rap. But as near as I can figure the horizontal push/pull moves 1 5/16 from center to either stop. The aileron travel on the 105 drawing (which is S18 specific), moves 2.5 inches.
The angles are what you should be looking for.
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Unclerap
 Post subject: Re: Aileron Travel
PostPosted: Tue Sep 17, 2019 7:42 pm 
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James Grahn wrote:
Not sure why this matters Rap. But as near as I can figure the horizontal push/pull moves 1 5/16 from center to either stop. The aileron travel on the 105 drawing (which is S18 specific), moves 2.5 inches.
The angles are what you should be looking for.
Cubes


The travel distance knowledge is what I need and thanks for the info. AP servo is limited to 2.5" max travel with the standard servo arm. Right on the edge.

Rap

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