Originally Posted by
MissChief
Why single-channel AP on the ILS?
Flying a CAT 1 ILS with conditions above minima for CAT1…
As previously stated, a dual channel AP approach (CAT3) results in autotrimming up at around 350’RA.
You could fly Dual CH, remembering to discount prior to this trimming, or dealing with an out of trim ac below this point once the AP is disconnected.