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11-19-2009, 07:52 AM
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Join Date: Apr 2005
Posts: 109
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Trim servo speed controller
JUST GOT MY 9A FLYIN AND AM IN TESTING PHASE. I HAVE A RAY ALLEN ELECTRIC ELEV TRIM SYSTEM. WAY TOO SENSITIVE. RAY ALLEN HAS A SPEED CONTROLLER TO, I ASSUME SLOW DOWN THE SYSTEM. DOES ANYONE HAVE EXPERIENCE WITH THE SPEED CONTROLLER. DOES IT WORK WELL? CAN YOU EMAIL ME AT JDMEDIC@COMCAST.NET WITH ANY INPUT.
JOE
N459RV
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11-19-2009, 08:07 AM
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Join Date: Jan 2005
Location: The Beautiful NJ Shore
Posts: 409
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Suggest you look at TCW Tech's 'Safety Trim'. Speed controller with safety features. http://www.tcwtech.com/
__________________
Greg Piney
RV-8 2547
Empennage Done!
Beginning Fuselage Final Assembly!
(Tub finished, on to Landing Gear).
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11-19-2009, 10:05 AM
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Join Date: Jan 2005
Location: Peachtree City, Ga
Posts: 1,040
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Speed control
I used the Matronics unit on my 6A.
__________________
Vern Darley
Awarded FAA "The Wright Brothers 'Master Pilot' Award"- for 50 years safe flying
RV-6A N680V / RV-10QB N353RV
Luscombe 8E N2423K 50+years
Hatz Biplane N2423Z soon to be birthed
Falcon RV Squadron Founder
KFFC Hanger D-30
Peachtree City, Ga
770 310-7169
EAA Technical Counselor #5142
EAA Flight Advisor #486336
ATP/CFI/A&P/DAR
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11-19-2009, 10:22 AM
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Join Date: Dec 2006
Location: Sumner, WA
Posts: 722
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I'm not done building but I'm interested in the same question.
An inflight adjustable speed control would be best. (maybe with a switch?) I've heard from others that a slow servo is great at cruise speeds but can be annoyingly slow in the pattern. Likewise regular servo speed in the pattern is great but too fast in cruise.
__________________
Jeff Bloomquist
Sumner, WA
PP-ASEL, IR
RV-7A
Flying
1150 Hours
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11-19-2009, 10:57 AM
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Join Date: May 2005
Location: Canby, Oregon
Posts: 1,786
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The Ray Allen system work fine.
The only problem that I have had with mine was I set it up backwards. It trimmed faster when flaps were up and slower when flaps were down.
After I switch the wires around and adjusted the slow speed voltage, it has work great since.
Kent
__________________
Kent Byerley
RV9A N94KJ - IO320, CS, tipup
AFS 3500, TT AP, FLYING....
Canby, Or
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11-20-2009, 06:51 AM
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Join Date: Apr 2005
Location: KSLC
Posts: 4,021
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I found that I never needed a speed controller. Just quick blips on the hat switch do a good job. I have both elevator & aileron trim.
L.Adamson --- RV6A
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11-20-2009, 08:01 AM
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Join Date: Mar 2006
Posts: 629
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Hi Joe,
Had the same issue with my 9a when I first flew it back in 2006. That big elevator trim tab makes for a very sensitive trim issue at cruise speeds. I bought the Ray Allen speed controller, got it set properly after a couple of flights, and it has worked great since. One suggestion, if you do go with the Ray Allen, mount it under the floor pan but drill a very small hole so you can access the speed control screw with a small screwdriver from the cockpit --makes for a much easier task of adjusting.
Cheers,
db
__________________
Dave B.
RV9a/ECiIO360/James Cowl/WW RV200 Prop
Flying since 3/06 and still smiling!!!
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11-23-2009, 08:34 PM
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Join Date: Aug 2008
Location: MONTGOMERY, TX.
Posts: 89
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TRIM SPEED
I set up my -6 with a speed controller, it has a swt. that changes it to fast when the flaps are not in full up. Works great. 700+ hrs.
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