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RV10 rudder trim
This was my first post here and it obviously works, so thank you to all for some great responses.
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I considered adding rudder trim and mocked up a spring bias design I had seen on a completed '10. I ended up deciding to install it post first flight.
Three years and 460 hours of cross country flying later, it will never go in because I don't need it. It's a high performance plane that requires a good kick at the start of the takeoff roll - trim plays no role in that I'd venture. During full power climb, and there's no reason to do anything else, some right rudder pressure is required. I use the AP for most climbs most of the time. Trim could eliminate the need to rest your right foot on the pedal. During LOP cruise (I range between 155 and 165 knots at 8k-10k), so little right rudder is required that system friction and the carpet on my tunnel allow me to set the rudder and fly feet on the floor, hands in lap. Interestingly I know that one flier has a little loop of velcro or something that they lay over the cable during cruise to add just enough friction to allow feet on the floor cruise. That's truly KISS. During high power cruising (ROP, <7k, 170knots) some right foot is definitely required. Since break-in, I just don't do this but many do. Trim would be useful here. During descents there's usually a lot happening on an IFR clearance so I fly with my feet on the pedals even when using the AP. So obviously I choose not to have rudder trim. It's useful but superfluous at the same time if that's possible. My calculus is that's it not worth the time and effort. It doesn't add lightness or simplicity. It could be cool to build/install/have. |
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+2. Same here, although I needed a trim wedge on the rudder to get the ball centered in cruise, feet off.
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Aerosport Rudder trim
After a hundred hours or so of flight time on my RV-10 I installed the Aerosport Rudder Trim system. As mentioned in an earlier post it is simple, inexpensive and is relatively easy to install in a finished airplane. I had been looking for a spring bias system as it gives the added benefit of preventing some rudder wind damage when parked tail into the wind. Now with 500+ hours on the airplane I will say that this system works as advertised and I would recommend it to anyone.
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For those who used the flap motor as the actuator - I'm curious if Van's part number for it (ES 85615-10) is actually the same as this product:
http://cad.actuator.com/product/line...ar-actuator-1? If it is, I'm also wondering if anyone has tried using the one with the position sensor instead? The specs are nearly identical, but tought I'd ask. Thanks Rodrigo |
I have a spring bias system (blue skunk) that is okay, but don't really use it much.
My understanding is that Dynon is working on an integrated yaw damp system that will also function as trim. Might be interesting. I didn't read this whole thread so apologies if someone else mentioned it. One thing I have noticed is that with 3 people on board, you can really feel which side of the aircraft the third person is on. My airplane seems happiest with the heaviest person on the right side of the aircraft. |
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I would do it again for sure. |
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