Roll servo sensitivity

[swatson999]

Just a quick question for the group...

I have an RV-7A w/ SV-1000 and both pitch and roll servos for the A/P.

The pitch servo is working great right out of the box, very smooth, didn't have to change any settings.

The roll servo is "aggressive", resulting in abrupt movements with some "back-and-forth" rocking in level level. I adjusted the settings down a couple of notches (to 8) and that did help, but just wondering if anyone has any info on their settings in a similar set-up.

Caveat: I do have a fairly heavy right wing which I haven't fixed yet (will do that soon, busy breaking in the engine and working other minor tweaks here and there).

Just looking for what other people are finding are good settings for the roll axis so I have a sort of target to shoot for here...

TIA!

Steve

 

[meljordan]

I fly a RV6A and do a lot of Dynon testing. My roll sensitivity setting is 4. Don't be concerned about a low setting, go ahead and experiment. Start at 2 and go up until you start to get wing rock then back off one. It helps to have smooth air for this.

Best Regards,
Mel

 

[jakej]

Steve
May I suggest you tweak the airframe up first ie get it rigged and trimmed (skid ball in centre at normal cruise speed) so that the a/pilot doesn't have to work against airframe loads, then adjust the settings as required - this applies to all autopilots 

Jake J

 

[RV6-KPTW]

I fly an RV6 and found that at normal cruise a roll setting of 4 o 5 is good. I have used 8 to 10 for practice approaches at lower air speeds. One hopes that the advanced autopilot features will have enroute and approach modes with different sensitivity settings for config.

 

[swatson999]

Steve
May I suggest you tweak the airframe up first ie get it rigged and trimmed (skid ball in centre at normal cruise speed) so that the a/pilot doesn't have to work against airframe loads, then adjust the settings as required - this applies to all autopilots 

Jake J

Oh, yeah, I intend to do that and then revisit the settings...currently, ball is centered nicely, only issue is that heavy wing, which I expect to solve pretty soon. Then I'll play more with autopilot settings...was just trying to get some info in advance...