REFLECTOR: roll trim

Douglas Holub douglas.holub at gmail.com
Fri Feb 20 22:36:20 CST 2009


I'm on it. Thanks guys.

On Fri, Feb 20, 2009 at 8:31 PM, Al Gietzen <ALVentures at cox.net> wrote:

>  Doug;
>
>
>
> Make sure your roll trim is centered.
>
> If the rudders and tipsails (a.k.a. winglets) are properly aligned, and you
> don't have asymmetric drag (like a big scoop on one side); then some shim
> washers on the wing bolts are likely in order. Increase AOA on the right;
> decrease on the left. I'd suggest having material about .030", and then it's
> trial and error.
>
> A straightedge on the outboard side of the winglet/rudder should show a
> slight concavity; and should be the same on both sides. If so, also check
> that the straightedge makes the same angle to the fuselage centerline on
> both sides (that's a little more difficult).  A slight misalignment in
> rudder or tipsail can be corrected by shimming a rudder outward – shim on
> the inboard edge. Any asymmetric drag can be handled the same way; shim
> the rudder opposite the drag.
>
>
>
> Good luck,
>
>
>
> Al
>
>
>
> -----Original Message-----
> *From:* reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] *On
> Behalf Of *Douglas Holub
> *Sent:* Friday, February 20, 2009 5:11 PM
> *To:* reflector at tvbf.org
> *Subject:* REFLECTOR: roll trim
>
>
>
> When I let go of the stick, the plane wants to roll right. I plan on using
> the EZ-Pilot for aileron trim (I haven't turned it on in flight yet), but I
> would feel better if the plane flew straight hands free without the
> EZ-Pilot. What should I adjust? Should I add a fiberglass trim tab outboard
> below the left wing?
>
>
>
> Doug Holub
>
> Velocity Standard FG w/ electric nose lift
>
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