After a few hundred hours of perfect operation my autopilot's pitch function is playing up (RV-7 with FlightDek 180, AP74 and SV2s) If I change the altitude with the knob on the AP74 from say 4,000ft to 2,800ft the aircraft will descend past 2,800ft and then start climbing (after asking me for a pitch adjustment) and then will climb past 2,800ft. These keeps on until I disengage pitch function. If I select alt at a particular height and then don't change it all seems to be well. It's changing height that causes trouble.
Pitch problem
- Thread starter Coling955
- Start date
Raymo
I love aviation!
Start by checking the shear pin on the pitch servo. If that is good, and nothing else changed, it would be prudent to look over the flight controls and surfaces for any changes. If all that is fine, sounds like you need to adjust sensitivity and/or gain.