MGL Autopilot Finally having a Win- Update
Posted: Tue Dec 21, 2021 4:12 am
Hi All,
Background,
I have a Voyager EFIS with Trio Servos for my autopilot and I have no other type of GPS connected to my EFIS. Now having just got my autopilot working and not disengaging due to a servo clutch issue, I also have this left of track issue.
I flew a short GPS leg with my autopilot and notice it was flying left of the HIS boxes and maybe the ground track. I did not check if the aircraft was actually flying left of the GPS track over the ground.
I have seen over time where a number of people say their MGL/autopilot flies left of track and the HIS boxes, my autopilot seemed to fly my selected track with reasonable directional accuracy, but it also flew the selected GPS track to the left of my HIS boxes on my EFIS screen, if I had to guess there seems to be some type of track off set maybe in the EFIS programing.
I had read some where that some GPS Units allow you to off set your track in the GPS allowing your aircraft to have a slightly different track, left or right to other another aircraft flying between the same two waypoints, not a bad idea.
So thinking about the offset a bit more, if you are going to offset your GSP track, I would think you would off set your track to the right. This would then have aircraft flying the same track towards you, passing you down your left side, being the side most pilots sit on.
So, I am wonder if the HSI box Track are offset to the right in the EFIS software and the EFIS GPS is actually on track but seems to be left of track when comparing them to the HIS boxes on the EFIS screen.
I am yet to check my GPS/autopilot track over the ground to compare the HIS track to see which track is correct.
Rainer, could you shed some light on this left of Track issue.
Merry Christmas to those who celebrate this Festive Season.
JimJab
Background,
I have a Voyager EFIS with Trio Servos for my autopilot and I have no other type of GPS connected to my EFIS. Now having just got my autopilot working and not disengaging due to a servo clutch issue, I also have this left of track issue.
I flew a short GPS leg with my autopilot and notice it was flying left of the HIS boxes and maybe the ground track. I did not check if the aircraft was actually flying left of the GPS track over the ground.
I have seen over time where a number of people say their MGL/autopilot flies left of track and the HIS boxes, my autopilot seemed to fly my selected track with reasonable directional accuracy, but it also flew the selected GPS track to the left of my HIS boxes on my EFIS screen, if I had to guess there seems to be some type of track off set maybe in the EFIS programing.
I had read some where that some GPS Units allow you to off set your track in the GPS allowing your aircraft to have a slightly different track, left or right to other another aircraft flying between the same two waypoints, not a bad idea.
So thinking about the offset a bit more, if you are going to offset your GSP track, I would think you would off set your track to the right. This would then have aircraft flying the same track towards you, passing you down your left side, being the side most pilots sit on.
So, I am wonder if the HSI box Track are offset to the right in the EFIS software and the EFIS GPS is actually on track but seems to be left of track when comparing them to the HIS boxes on the EFIS screen.
I am yet to check my GPS/autopilot track over the ground to compare the HIS track to see which track is correct.
Rainer, could you shed some light on this left of Track issue.
Merry Christmas to those who celebrate this Festive Season.
JimJab