TRIO AVIONICS PRO-PILOT A/P

[dcflyer84]

Originally Posted by FORANE

Yes, I know my gain settings, but my installs were not in a -10 and likely would not assist in any way.
Guessing you are following this install manual for adjusting the gains:
https://www.trioavionics.com/Pro%20P...nual%204.1.pdf
Trio has updated the firmware on these recently. You might check with them to confirm you have the latest. One of the changes added a gain setting...

Adjusting gains can be very frustrating. I spent months trying to get a GMC507/G5 gains set before throwing in the towel and removing it.

Thanks, FORANE. I am using the manual and Trio just had my controller so the firmware should be up to date. I figured your Lancairs are pretty similar in performance and control sensitivity so your settings would make comparative data points.

[BobTurner]

Originally Posted by FORANE

. Even with the Trio, my results are not like a train track as Bob Turner reports; rather, it is optimized.

Perhaps I?m just lucky, but yes, my TT could not be better. I?ve been trying to follow SIP rules here in my county but when I get to the hangar I?ll look for my settings. Of course, I use a GRT when in the ?efis-controlled? mode, so your Garmin settings won?t match mine.

[FORANE]

Originally Posted by BobTurner

I use a GRT when in the ?efis-controlled? mode

I too have a GRT HX in the plane. Didn't wire the Trio through it as I never use its flight plan functions. Apart from the ARINC source and functionality, do the GRT gain settings improve performance of the Trio (pitch and roll performance more stable / accurate)?

[BobTurner]

Originally Posted by FORANE

I too have a GRT HX in the plane. Didn't wire the Trio through it as I never use its flight plan functions. Apart from the ARINC source and functionality, do the GRT gain settings improve performance of the Trio (pitch and roll performance more stable / accurate)?

It?s hard to say, as they are both very good. To be honest, I haven?t really tried the Trio in stand-alone mode in really challenging wx (turbulence). I do know (clear air turbulence) that the ?g-sensor/autopilot release? function works (!). Quite honestly I feel the Hx interface is superior, more functionality (ILS, VOR approaches; heading mode if given vectors). And easy to use.

[BobTurner]

Okay, I have retrieved my Trio notes. I’ll list my settings below. But note, they may be specific to my servo installation, which I think was pretty much by the book. BTW, some autopilot problems may be mechanical. Make sure there is no free play in any of the linkages in/to the control system. Make sure the servo mounts are strong enough that they don’t flex.
So I have a Trio Pro with programable autotrim. Last firmware update was July 2011. Under preferences, I have: Hnav gain Trk=3, CRS=3, PI=9; Hnav servo gain=16; Vnav servo ALT HLD=30, VS=35, AS=30; VNav servo DB=6.
For what it’s worth, here are my HX settings:
Turn antic 3.0; output normal; XT gain=50%; heading gain=200%; alt hold=100%; vert speed gain=100%; airspeed gain=100%; VOR gain=150%. Anything not mentioned was set to 100%.
Edit, sorry, my original notes were from home. Now corrected for the actual numbers off the Hx.
Edit, forgot to say, RV-10. Settings may be different in different aircraft.

[Steve Melton]

my Trio EZ pilot settings: course = 3, track =5, pull in = 15, course rate turn = 3 deg / sec.

edit: pull in later adjusted to 11.