Dugaru
Well Known Member
So I've got the 307, G5, and two GSA28s in an RV-9A. What kind of "accuracy" should I be seeing in turns if the autopilot is properly configured?
For example, let's say the autopilot is flying this GPS approach. I'm coming from the west and doing maybe 100 knots as I fly from Harcum to JUBJI:
https://aeronav.faa.gov/d-tpp/1902/09364G1.PDF
My 430W will plot, and the G5/307 will follow, a turn (indicated by a dotted line) that smooths out the corner as I get near JUBJI and start heading north toward IFESO.
When executing this turn, the plane will however overdo it to the left by about 10-15 degrees, before straightening out and heading to IFESO.
Meanwhile (if I don't command a new altitude) the altitude change will be maybe - 40 feet before it corrects and settles back at the original altitude.
The same things happen in shallower turns in cruise flight, although there's definitely less overshoot in shallower turns.
This overturning is not as significant as with my S-TEC with GPSS in the old Warrior, and is certainly not a major problem. But is it par for the course, or does it indicate that my autopilot settings still need tweaking? Is the thing actually capable of riding the plotted course like a rail?
Assuming I need to do some more tweaking, are there "starter" settings recommended for an RV-9 and the latest G5 software?
Thanks
DMG
For example, let's say the autopilot is flying this GPS approach. I'm coming from the west and doing maybe 100 knots as I fly from Harcum to JUBJI:
https://aeronav.faa.gov/d-tpp/1902/09364G1.PDF
My 430W will plot, and the G5/307 will follow, a turn (indicated by a dotted line) that smooths out the corner as I get near JUBJI and start heading north toward IFESO.
When executing this turn, the plane will however overdo it to the left by about 10-15 degrees, before straightening out and heading to IFESO.
Meanwhile (if I don't command a new altitude) the altitude change will be maybe - 40 feet before it corrects and settles back at the original altitude.
The same things happen in shallower turns in cruise flight, although there's definitely less overshoot in shallower turns.
This overturning is not as significant as with my S-TEC with GPSS in the old Warrior, and is certainly not a major problem. But is it par for the course, or does it indicate that my autopilot settings still need tweaking? Is the thing actually capable of riding the plotted course like a rail?
Assuming I need to do some more tweaking, are there "starter" settings recommended for an RV-9 and the latest G5 software?
Thanks
DMG