PPRuNe Forums - View Single Post - Airbus trepidation... convince me otherwise!
Old 22nd May 2012, 17:07
  #159 (permalink)  
Uplinker
 
Join Date: Nov 1999
Location: UK
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You don't need to trim out the control forces on an Airbus, because there aren't any ! It's just a joystick connected to 5 computers.

The main thing no-one ever tells you is that the autopilot arrangement is different to a Boeing. When you disconnect the autopilot in a Boeing, your control inputs then go directly to the control surfaces. (Don't know about the 777 or NG). In an Airbus, the autopilot is always in !! When you disconnect the autopilot in an Airbus, what you are actually doing is changing where the autopilot receives its guidance from: The FMGS/FCU, or your sidestick. The autopilot is still in circuit, keeping the aircraft flying where you put it (and keeping it trimmed) - which reduces the control inputs required from you. All you need to do is 'tell it' where you want it to go. The Airbus will keep the attitude you command, even through turbulence. (Although severe turbulence or upsets will require corrections from you).

Don't hose the side stick around, just make small corrections to keep the box on the cross hairs and the Airbus will do the rest. In windshear or strong cross winds, you may need to hold full sidestick for several seconds, but it will respond and this is fine once you're used to it.

I do think however, that they should have made the side sticks move together, so the other guy knows what you're doing and vice-versa.

Regarding moving auto throttles, the Airbus system is very easy to fly. Your scan will soon modify itself to look for the thrust clues rather than feeling them through your hand.

Good luck - it's a wonderful machine !

Last edited by Uplinker; 22nd May 2012 at 22:04.
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