Roll tracking - Track vs GSS

[steve m]

Doing some initial setup on the AP (RV10 with Garmin 175). Going through the AP tuning procedure, I thought I had the lateral tracking dialed in using the flowchart. The Dynon procedure has you use "track" mode to verify settings. I felt good about my settings.

Few days later, performing vectors to final on LPV approach and I had a lot of overshoot on joining the final approach course? Is there something inherently different about setup for Track mode vs GSS. Should I repeat setup using GSS mode instead of Track mode?

 

[Dynon]

So, track is less sensitive than GSS, so you might try nudging up your sensitivity setting. Know that our next software release has some work on the core autopilot algorithms, and I think improving this sort of performance is one of the things they are chasing (pun intended). Don't have a firm date on that release though. Our support team does have a settings file from an RV10 pilot who spent lots of time dialing if you want to try that as a "known good" starting spot (for that particular airplane - your milage may vary). If you'd like that, send an email to our support team - contact info is in my signature below.

 

[DBRV10]

Our support team does have a settings file from an RV10 pilot who spent lots of time dialing if you want to try that as a "known good" starting spot (for that particular airplane - your milage may vary).

That is likely to be me

Few things to look into;

1. Make sure your AP roll servo is connected with the centre hole, not the outer one, and never the inner one.
2. Settings as follows;
Torque 100%
Sensitivity 16
Roll Gain 0.3
Bank Angle Limit 27

Pitch I assume is an SV42T, if not, change it.
Torque 100%
Sensitivity 16-17
Pitch Gain 1.6
Altitude Gain 0.9
Pull rate 2.0
VSI gain 1.5
G Error Gain 1.2
G error limit 0.7

And whenever we get the next version of SV software, I will have a couple more for you ;-)

 

[steve m]

"And whenever we get the next version of SV software, I will have a couple more for you ;-)"

Hi, Can you give me your full set of settings for the latest version software for you RV10?

I am 90% happy but wanting to get it dialed in a bit more.
Thx

Steve

 

[DBRV10]

I think this what I have currently, give them a try and see how it goes.

Roll Settings;
Torque 100%
Sensitivity 16
Roll Gain 0.3
Bank Angle Limit 27

Pitch Settings (SV42T);
Torque 100%
Sensitivity 16-17
Pitch Gain 1.7
Altitude Gain 0.8
Pull rate 1.0
VSI gain 1.5
G Error Gain 1.2
G error limit 0.7
GSI Gain 1.0
GSI Dot Gain 10