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gyoung
Joined: 09 Jan 2006
Posts: 211
Location: Republic of Texas
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 Posted: Mon Feb 01, 2010 4:48 pm Post subject: aileron trim |
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While I'm sure someone has rigged a servo to operate the manual trim but the standard electric aileron trim has a Mac servo embedded in the aileron with a pushrod to a hinged tab hanging off the trailing edge. Typical Van's... serviceable but ugly. More elegant solutions create cutouts for a tab similar to the elevator trim. Not a biggie for us slow builders but maybe more of an issue for the snap togethers;-)
Regards,
Greg Young
| Quote: | From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Ralph & Maria Finch
Sent: Monday, February 01, 2010 1:46 PM
To: rv-list(at)matronics.com
Subject: RE: aileron trim
Yes—pretty sure. The Vans aileron trim, manual or electric, is apparently in the fuselage, and works by applying more or less force to springs on the control stick. There is nothing in the wing with respect to the aileron trim. While I haven’t got that far into my build, I imagine that going to electric from manual is not involved, or even retrofitting the aileron trim into an already-built airplane.
Ralph Finch
Davis, California
RV-9A QB-SA
From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Garry Stout
Sent: Monday, February 01, 2010 9:52 AM
To: rv-list(at)matronics.com
Subject: RE: aileron trim
Is there a reasonable way to retrofit an electric aileron trim into an already built wing?
Garry
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[quote][b]
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pitts_pilot(at)bellsouth.
Guest
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| Posted: Mon Feb 01, 2010 5:00 pm Post subject: aileron trim |
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Greg Young wrote:
| Quote: | While I'm sure someone has rigged a servo to operate the manual trim but
the standard electric aileron trim has a Mac servo embedded in the
aileron with a pushrod to a hinged tab hanging off the trailing edge.
Typical Van's... serviceable but ugly. More elegant solutions create
cutouts for a tab similar to the elevator trim.
Interesting. I've never seen an aileron on a GA airplane that had a
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cutout trim tab. Any examples???
Linn
do not archive
Not a biggie for us slow
| Quote: | builders but maybe more of an issue for the snap togethers;-)
Regards,
Greg Young
------------------------------------------------------------------------
*From:* owner-rv-list-server(at)matronics.com
[mailto:owner-rv-list-server(at)matronics.com] *On Behalf Of *Ralph &
Maria Finch
*Sent:* Monday, February 01, 2010 1:46 PM
*To:* rv-list(at)matronics.com
*Subject:* RE: aileron trim
Yes—pretty sure. The Vans aileron trim, manual or electric, is
apparently in the fuselage, and works by applying more or less force
to springs on the control stick. There is nothing in the wing with
respect to the aileron trim. While I haven’t got that far into my
build, I imagine that going to electric from manual is not involved,
or even retrofitting the aileron trim into an already-built airplane.
Ralph Finch
Davis, California
RV-9A QB-SA
*From:* owner-rv-list-server(at)matronics.com
[mailto:owner-rv-list-server(at)matronics.com] *On Behalf Of *Garry Stout
*Sent:* Monday, February 01, 2010 9:52 AM
*To:* rv-list(at)matronics.com
*Subject:* RE: aileron trim
Is there a reasonable way to retrofit an electric aileron trim into
an already built wing?
Garry
*
*
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gyoung
Joined: 09 Jan 2006
Posts: 211
Location: Republic of Texas
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| Posted: Mon Feb 01, 2010 5:28 pm Post subject: aileron trim |
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I've seen a couple examples but don't have any pictures or references to
point you to. I've also seen one that hinged part of the fiberglass wing tip
trailing edge to act as an auxiliary aileron. You can't really call that a
trim tab in the traditional sense but it would work - just needs more area.
Regards,
Greg Young
[quote] --
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MNellis
Joined: 16 Aug 2008
Posts: 15
Location: Georgetown, TSX
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| Posted: Mon Feb 01, 2010 5:57 pm Post subject: aileron trim |
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I built mine about a 10 years ago (I'm still not flying) but you can see
the process and results. There are others out there who have done a
better job and there are some things I will probably change before I fly
but you get the idea.
http://bmnellis.com/wings_ailerons_trim.htm
Mike Nellis
| Quote: | Interesting. I've never seen an aileron on a GA airplane that had a
cutout trim tab. Any examples???
Linn
do not archive
Not a biggie for us slow
> builders but maybe more of an issue for the snap togethers;-)
>
> Regards,
> Greg Young
>
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_________________
Mike Nellis
RV6 Fuselage |
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grenwis(at)aol.com
Guest
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| Posted: Tue Feb 02, 2010 7:22 am Post subject: aileron trim |
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Having built the little section of hinge on the outboard trailing edge of my RV-6A, I wouldn't do it again. The hinge doesn't look good, nor does the panel you cut in the aileron to install the servo. When the internal spring works so well, why worry about having to look at the trim tab forever? When I was building, I thought it would be nice to have a pushbutton on the stick for electric trim, and it is, but I immediately wished that I had used the spring and kept it all hidden.
Rick Grenwis
RV-6A 220 hrs
Denver, CO - KBJC
[quote][b]
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