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07-20-2014, 02:35 PM
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Join Date: Jun 2013
Location: Carpinteria
Posts: 10
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Aileron Adjustment
Having some problems with the ailerons. When flying if you let go of the stick she does a drastic hard right turn. You can also see they are not centered when on the ground. I would hate to loose aileron control while in the air. Any information would be great.
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07-20-2014, 03:00 PM
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Join Date: Dec 2004
Location: Gold Hill, NC25
Posts: 2,400
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Have you followed the rigging instructions in the plans? They will find a natural center. You probably have a heavy wing or other problem. Example pants, fairings etc out of alignment.
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Kahuna
6A, S8 ,
Gold Hill, NC25
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07-20-2014, 03:09 PM
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Join Date: Mar 2008
Location: Toronto
Posts: 328
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Quote:
Originally Posted by RV7 Bruno
Having some problems with the ailerons. When flying if you let go of the stick she does a drastic hard right turn. You can also see they are not centered when on the ground. I would hate to loose aileron control while in the air. Any information would be great.
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Check vertical height of ailerons. Slot the aileron bracket holes and move aileron vertically relative to the wing, it is written up in the Vans heavy wing document.
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RV7A New Dec 2013 - 360, C/S, slider
RV6 - 1600 Hours ---- Sold
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07-20-2014, 03:34 PM
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Join Date: May 2005
Posts: 233
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After doing all the steps in Vans letter I still had a very heavy right wing. Here are my notes from process.
I tried to fix the heavy right wing by lowering the outboard end of the left aileron by .080 but it made it worse. So I returned everything to where it was.
I removed the right aileron and milled the brackets to drop the aileron .060 and put it all back together.
A short flight tonight confirmed that lowering the right aileron corrected the heavy wing. I got lucky and it turned out perfect.
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John Furey, RV7. Ohio
Life's Short...Fly Often!
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07-22-2014, 07:30 PM
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Join Date: Jun 2013
Location: Carpinteria
Posts: 10
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Thanks everyone. I have over 500 hours on the plane. This is a new problem. I thought maybe it had something to do with my auto pilot.
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05-02-2015, 12:07 PM
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Join Date: Oct 2009
Location: Boca Raton, FL
Posts: 10
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Update Please
We too have a left wing that has suddenly become heavy and requires lots of right trim.
What did your problem turn out to be? Maybe we are having the same problem.
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05-02-2015, 12:23 PM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,035
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Any sudden change in roll trim when no rigging changes have been made is likely caused by a shape change in an aileron (this can happen by someone aggressively squeezing one of your ailerons).
Use a straight edge to check for proper trailing edge shape as described in paragraph 5.7 in THIS document.
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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05-31-2015, 08:09 PM
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Join Date: Jul 2014
Location: Whistler BC
Posts: 207
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Quote:
Originally Posted by rvbuilder2002
Any sudden change in roll trim when no rigging changes have been made is likely caused by a shape change in an aileron (this can happen by someone aggressively squeezing one of your ailerons).
Use a straight edge to check for proper trailing edge shape as described in paragraph 5.7 in THIS document.
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Priming Control tubes ?????
__________________
Andrew Atalla
Red Seal Automotive Service Technician
Red Seal Heavy Duty Equipment Service Technician
Welder/Fabricator
Squamish BC CYSE
RV-7 Left Elevator in progress
Dues paid
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06-01-2015, 01:19 PM
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Join Date: Nov 2014
Location: Richmond Hill, GA (KLHW)
Posts: 2,189
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If you have the typical Ray Allen roll trim, double-check the rigging under the seats. You might have a broken spring or safety wire. These are what keep the controls centered on the ground as well as in the air.
__________________
Ray
RV-7A - Slider - N495KL - First flt 27 Jan 17
O-360-A4M w/ AFP FM-150 FI, Dual PMags, Vetterman Trombone Exh, SkyTech starter, BandC Alt (PP failed after 226 hrs)
Catto 3 blade NLE, FlightLines Interior, James cowl, plenum & intake, Anti-Splat -14 seat mod and nose gear support
All lines by TSFlightLines (aka Hoser)
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06-01-2015, 01:32 PM
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Join Date: Mar 2006
Location: Newport, TN
Posts: 7,496
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Quote:
Originally Posted by atalla
Priming Control tubes ?????
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Check out page 5-10
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