Originally Posted by
CVividasku
If you have the A/T on, the airplane can diverge from the intended trajectory, for example if your nose is slightly low or high. It's easier to display a power preset to a tenth of a percent (it's displayed like so) than to display a pitch preset (the pitch indicator is more than 1° large and the scale is precise to 2.5°..) Also I noticed that, at least in the sim, the vertical speed has a half second/one second delay that can generate PIO if you try to fly the glide with vertical speed rather than pitch. Contrarily to airbus.
To repeat the point so you really understand, not to show off: it is possible to trim a 777 sim from manual level flight onto the glide, and fly the ILS hands off to the runway. Autothrottle on, raw data manual ILS. I have done it. The feedback is precise enough to know when pitch is in trim.
It is almost impossible in reality because the atmosphere is not like a simulator.
To get back to the original point: You fly data and think the world is like this sterile unchangeable data. It is not. Pilots are trained to set data as a starting point but continuously adapt to the reality which is not simulatorlike but full of little outside disturbances.
Your original question turns out to be a quest for confirmation that A/T is making our life more difficult. It is the opposite. Because reality is not a simulator using datapoints. Reality is everything from subtle to big sudden changes, where you need to have a hand on the throttle and a hand on the stick and use the feedback provided. Your ’stability problem’ is small compared to the real world disturbances but you don’t seem to understand that as you’ve never been at the controls of a calm wind ILS, let alone a gusty one. Your problem literally disappears into the wind if I may say so. With all due respect, so would your speed if you decided to disconnect the A/T because you think it is easier. The A/T does a fantastic job at it. It doesn’t even need additional wind corrections which makes life over the threshold a lot easier...
If you can’t accept that reality the solution for you is easy: wait for the first A350 that can takeoff with the autopilot and land without a single disconnect. Problem solved.