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Old 12-16-2013, 06:06 PM
acroflyrgirl acroflyrgirl is offline
Join Date: Jun 2006
Location: Tucson, AZ
Posts: 406
Default Wedge rudder trim piece

I am changing the little piece on my rudder so I don't need so much right rudder pressure in cruise.
Does it matter which side of the wood i put on the skin itself?
I want to use the smooth side out so the paint will lay nice.
However the 90 cut would have the smooth side on the skin.

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Old 12-16-2013, 07:42 PM
Mountain Time Mountain Time is offline
Join Date: Apr 2012
Location: Puget Sound
Posts: 82

Don't recall which way I oriented mine, but I am pretty sure it won't matter from a trim or structural standpoint. So I say smooth side out for the best finish
RV-6 flying, 0-360 CS, 700 hr
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Old 12-16-2013, 07:48 PM
fixnflyguy fixnflyguy is offline
Join Date: Jan 2006
Location: Winston-Salem, N.C.
Posts: 1,467
Default What I did

Looks like you are holding a piece of Balsa..I used a piece of knot free spruce and cut the wedge on a bandsaw. I sanded it on a flat surface almost razor sharp on the leading edge, then gave it several coats of epoxy primer sanded between coats . I quick topcoat, and it looks like the rest of the plane. I attached it with Proseal, and its there to stay. Use double sided tape for test flights and trim to size needed.
Bill E.
8A7 / Advance NC
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Old 12-16-2013, 08:36 PM
acroflyrgirl acroflyrgirl is offline
Join Date: Jun 2006
Location: Tucson, AZ
Posts: 406
Default Double sided

Thanks all. Is there a specific type of double sided tape that is preferred? The double sided I found is kind of thick.
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Old 12-16-2013, 09:11 PM
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Bill_H Bill_H is offline
Join Date: Aug 2010
Location: Marshall TX (KASL)
Posts: 1,793

If you use that somewhat thick double sided tape from Walmart Aviation Supply, be aware you may find it VERY difficult to remove!!! My temporary use has proved permanent. Used an Avery wedge.
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Old 12-16-2013, 10:43 PM
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Greg Arehart Greg Arehart is offline
Join Date: Jul 2007
Location: Delta, CO/Atlin, BC
Posts: 2,437

I actually machined a piece of aluminum (I know, heavier) to use for my original trim tab. Sticks on well (up to 200 mph!) with double-sided tape (I don't remember the brand), and paint goes on easily. It also has a sharper leading edge than the wood, so hypothetically a bit less drag.

Greg Arehart
RV-9B (Big tires) Tipup @AJZ or CYSQ
N 7965A
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Old 12-17-2013, 12:05 PM
firemanken firemanken is offline
Join Date: Oct 2009
Location: Paris,Ohio
Posts: 9
Default Rudder trim

We needed a small amount of rudder trim on our RV6A. Found one at Avery Tools. Made of hard plastic easy to paint. If I remember correctly it comes with double sided tape to mount.
Put on before we painted A/C. It's painted now and it blends in very well.. It does the job also.
If I could figure out how to add photo I would show you tab on plane .

Item # Image Description Price
In Stock

RV6A bought flying
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Old 12-17-2013, 12:16 PM
Pat Stewart Pat Stewart is offline
Join Date: Jan 2005
Location: Granbury Texas
Posts: 1,136

It may be just the picture but that is a healthy looking wedge. I have always used speed tape and a pencil to first determine the amount of tab required then I used a piece of aluminum sheet stock approx .09 thick riveted to the rudder with a couple inches in trail that can be bent into the airstream as required for fine tuning. It makes a nice looking installation and can be painted

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Old 12-17-2013, 12:51 PM
acroflyrgirl acroflyrgirl is offline
Join Date: Jun 2006
Location: Tucson, AZ
Posts: 406
Default Tab length

I put an experimental tab on and flew it. Now to paint it up nice. I like the plastic wedge idea though.
Might put my balsa one on in a semi permanent way.
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Old 12-17-2013, 01:22 PM
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az_gila az_gila is offline
Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011

A coat of epoxy on the balsa might seal it better against the weather (AZ dryness as well as monsoon damp) than just spraying epoxy primer on it.
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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