Split Elevator?

Date:         18 Jan 2000 05:24:22 
From:         "Barry Kabello" <bkabello@gte.net>
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I've seen several airliners taxiing around with the elevator on one side
down and the other up, or neutral, etc...in other words, they seem to move
independent of each other.  I was baffled to recently hear that each pilot
has independant linkage to their own elevator.  If this is true, do split
rudders work the same way?  Anything other split controls?  Exclusive to
Boeing?

Thanks,
Barry