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08-04-2008, 07:19 AM
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Join Date: Jan 2006
Location: South Africa
Posts: 840
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Rudder trim - or not?
We have started with the rudder now and I am trying to make up my mind on the rudder trim. I would love some input on this.
Is it really needed or just a luxury?
__________________
Jan Hanekom
South Africa
Approved Person nr 325
http://www.rvbits.com
RV10 - ZU-XOX - (Flying)
RV7A - ZU-JRV - (Flying)
RV10 - ZU-JVR - (Written off)
RV7 - ZU-LOL - (Flying)
RV10 - ZU-RVI - (Flying)
RV7A - ZU-MER (Bought back)
RV7A - ZU-JAD (Sold Flying)
Dues paid for 2020 WITH A SMILE
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08-04-2008, 07:32 AM
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Super Moderator
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Join Date: May 2005
Location: Locust Grove, GA
Posts: 2,627
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Rudder trim
Jan, I have put adjustable rudder trim on my last 2 RV's, having had the fixed trim on the first 2. It depends on the type of flying you do. If it's primarily at one altitude/speed, then a fixed trim will work fine. If do a lot of cross-country, and you fly high and on autopilot, it is really nice to be able to completely trim the airplane for climb, cruise, and descent. I really like seeing the airplane completely trimmed in all 3 axis while in cruise, especially when IMC.
Better to have it and not need it then to not have it and want it.
Vic
__________________
 Vic Syracuse
Built RV-4, RV-6, 2-RV-10's, RV-7A, RV-8, Prescott Pusher, Kitfox Model II, Kitfox Speedster, Kitfox 7 Super Sport, Just Superstol, DAR, A&P/IA, EAA Tech Counselor/Flight Advisor, CFII-ASMEL/ASES
Kitplanes "Unairworthy" monthly feature
EAA Sport Aviation "Checkpoints" column
EAA Homebuilt Council Chair/member EAA BOD
Author "Pre-Buy Guide for Amateur-Built Aircraft"
www.Baselegaviation.com
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08-04-2008, 04:14 PM
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Join Date: Dec 2006
Location: Sturgis, SD
Posts: 29
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Do it
Jan,
I would do it now, it takes a bit of extra work, but you will be happy later
Pete Sanchez
N615PS
RV-10
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08-04-2008, 05:50 PM
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Join Date: May 2008
Location: Brisbane Qld. Aust.
Posts: 2,271
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I would install a small tab while assembling, a small fixed tab is cheap and easy to adjust. Once set for the cruise its all you need.
I see some have made electric rudder trim units however this is nice but a lot of work.
For me a small fixed tab will do.
DB
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08-04-2008, 09:50 PM
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Join Date: Mar 2008
Location: Reno NV
Posts: 542
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RE: Rudder trim
I have just returned from a 32.5 hour x-country trip and as soon as I returned, I ordered the ML Skunkworks rudder trim. I have a 16 month old 9A with 230 TT. The system works on the same principle as the aileron trim, biased springs. The good part is that it is installed under the instrument panel with the two arms clamped to the rudder bars. A very clean install. I would encourage you to check it out before cutting the rudder and engineering then installing the associated monkey motion. Dan.
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08-05-2008, 01:16 AM
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Join Date: Jan 2006
Location: South Africa
Posts: 840
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Dan, being in South Africa I have no idea who and what the Skunkworks trim is? Any more info or a website?
Thanks.
__________________
Jan Hanekom
South Africa
Approved Person nr 325
http://www.rvbits.com
RV10 - ZU-XOX - (Flying)
RV7A - ZU-JRV - (Flying)
RV10 - ZU-JVR - (Written off)
RV7 - ZU-LOL - (Flying)
RV10 - ZU-RVI - (Flying)
RV7A - ZU-MER (Bought back)
RV7A - ZU-JAD (Sold Flying)
Dues paid for 2020 WITH A SMILE
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08-05-2008, 03:39 AM
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Join Date: Dec 2005
Location: Hamilton, New Zealand
Posts: 632
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Google is your friend
I put "ML Skunkworks" into Google and got one hit.
This one :-)
http://www.mlskunkworks.embarqspace.com/
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08-05-2008, 03:50 AM
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Join Date: Dec 2006
Location: Winston-Salem, NC
Posts: 317
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M.L. Skunkworks
Quote:
Originally Posted by Janekom
Dan, being in South Africa I have no idea who and what the Skunkworks trim is? Any more info or a website?
Thanks.
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Try This...
http://www.mlskunkworks.embarqspace....rim/4528455343
__________________
Bill Settle
RV-8 N38CW (Reserved)
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08-05-2008, 06:48 AM
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Join Date: Oct 2007
Location: Jackson, MS
Posts: 1,262
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Springs on rudder peddles
Seems like there were threads about springs on the peddles to keep the rudder from flapping in the breeze when parked. If I recall, some put 2 springs on right side so it acted like a trim tab.
Wouldn't this work?
I'm asking because I am thinking about the springs instead of a tab install since paint time is coming up.
__________________
Webb Willmott
Jackson, MS
N32WW
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