Teach Me About 777-200ER PFD

Can anyone identify what the rotary dial in the upper right hand of the B772ER is, please? I’ve put a red box around it in the photo. Couldn’t think of a more appropriate category. Thanks in advance.


That is the Angle of Attack indicator.
You can find more information & the like about the new 772 cockpit here:



Hi there i believe that this is the AOA or angle of attack indicator, during landing IRL a green box will show up indicating to the pilots the appropriate AOA for there speed altitude, mostly used on landing.

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