Dynon AP "Asks" For Nose Up Trim

[Malndi]

Thread revival:

I was hoping to see a conclusion to the question Larry posed because this is the final step in my decision making before palcing an order for some Dynon gear.

In the various threads on the subject it appears opinions are divided on the adequacy of the SV32 servos in an RV, in my case a 6 with manual trim. Given the SV42 servos are the same size and price would it not be worth the small weight penalty to select the stronger servos to eliminate the question of adequacy?

Thanks
Mal

[BruceEicher]

I have found in my -8 the 32 servos to be just fine. When they do slip it is because I have either done something wrong, like turned the trim knob the wrong way, or I am in heavy turbulence and should not be on auto pilot anyway. I have factory default settings...ymmv....

[Malndi]

Thank you Bruce, I will go ahead and order the 32's.

[lr172]

I have about 180 hours on my 6 now and have never seen a slip indication with my -32 servos. That said, I haven't flown a lot in significant chop with the AP engaged.

Larry

[AAflyer]

...could not complete the pre-fliight calibration test...the one where it's supposed to move the controls UP/LEFT, then DOWN/RIGHT. The pitch servo just chattered and chattered. My elevator is perfectly balanced.
I had to send in my SV screen for error codes, so asked for a -42 servo at the same time.
Now, my new SV-Touch is GREAT!!!...and my AP works pretty darn good. There's just a small twitch or "pulse" in the pitch, but I can only feel it in the stick...not the plane, so I think it must be "slop". I'm almost done with Phase I...about 35 hours.
The -32 to -42 upgrade was done 'gratis' by Dynon.

[jpowell13]

My Trutrak pitch servo was doing something similar. Trutrak had me send it in. They fixed the problem for me. John