Automatic Flight

Question 1

What is the earliest you can engage autopilot on takeoff?

Answer 1

Do not engage the autopilot below 1000ft AGL on takeoff.(AFM/ASA).

Question 2

When is the latest you would have to disengage the autopilot on a
single channel approach?
When must the AP be disengaged on an HGS AIII approach?

Answer 2

For single channel operation during approach , the autopilot shall not remain engaged below 50ft AGL.(AFM)
For manually flown HGS AIII Approach , the autopilot shall not remain engaged below 500 ft AGL.

Question 3

Can you use aileron trim with the autopilot engaged?

Answer 3

Use of aileron trim with autopilot engaged is prohibited.(AFM).