747-400 autopilot
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They don't, minimum engage/disengage heights vary between different aircraft and yes.
Your information source is incorrect. The only time I used to engage the A/P on the '400 at low altitude was in very busy airspace, if flying a complicated SID or it was likely that weather avioidance would be needed soon after T/O. Another example when it would be sensible would be after a major system failure in order to release some brain capacity. I am sure others can think of more occasions when early engagement might be advisable.
Edited for grammar wot I had written.
[This message has been edited by M.Mouse (edited 01 May 2001).]
Your information source is incorrect. The only time I used to engage the A/P on the '400 at low altitude was in very busy airspace, if flying a complicated SID or it was likely that weather avioidance would be needed soon after T/O. Another example when it would be sensible would be after a major system failure in order to release some brain capacity. I am sure others can think of more occasions when early engagement might be advisable.
Edited for grammar wot I had written.
[This message has been edited by M.Mouse (edited 01 May 2001).]
