Yes it does and never knew i had it. Sometimes I have to help the trim. Meaning the trim will be 1-2 dig up but maintaining level flight but off 50’ from where I set the Altitude. If I “help” the trim by putting it in the correct for that attitude / speed it holds the originally set altitude...
I have a CIII in my 67 Bonanza that was installed as original equipment. It is working fine except for slight a slight porpus at altitude hold engagement. Just found after reading this thread and talking to Matt Greer at Century that I have auto trim. Unfortunately the auto trim is not...