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RV-10 rudder trim ideas
I ordered the Aerosport under-panel rudder trim kit and spent this past weekend attempting to install it. I finally gave up - it's waaaayy too busy under that panel for that mechanism to peacefully coexist with everything that's currently there.
I definitely need some sort of rudder trim and I want it to look at least a little bit thought out (as opposed to a bendable tab slapped on the rudder trailing edge). I thought briefly about attaching the springs that came with the Aerosport kit directly to the rudder cables somewhere in the tail section, but that could create more problems than it fixes. So I'm mining the community for ideas. |
I used the hinge method with a Ray Allen servo. Hard to see in the photo but the servo is mounted on the inside of a removable access panel to the left of the threaded rod fairing. I installed during the build but it still would be an EZ retrofit to a flying plane with minimal paint touch-up. IIRC I used about 10" of hinge and That would give a little over a full ball either side. I found it an invaluable accessory on my -10, especially with various loading and winds aloft.
[IMG] DSC01477 by David C, on Flickr[/IMG] |
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The force needed for climb or descent is so little, I can't imagine having an adjustable trim that is only needed for perhaps 10 min at each end of flight if you go up fairly high. |
The hard part with that approach looks like it wouldn't be mechanical, but electrical. I'll assume you have a control switch somewhere on your panel.
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Is there a need to rebalance the rudder after installing a servo and trim mechanism?
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The pilot side is the same story, that's where all the computer 'guts' are. I would have to remount a couple units deep in the bowels of the panel layout to make it happen. That being said, you might have better luck. I'll sell you mine for cheap. |
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Carl |
Rudder trim
I have the aerosport rudder trim and have no issues with room to install it...
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Here is the simple trim tab I mentioned in my earlier post. Not my idea - I stole it. Hard to see, but the tab is bent aft perhaps 30 degrees.
Carl ![]() |
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