In article ,
john smith wrote:

Yes, Peter, I do know that.
It is very evident when preflighting an aircraft.
When you raise or lower the elevator, the trim tab moves variably with
the angle of the elevator.

Not on the single engine Cessna aircraft it doesn't. With the possible
exception of the Cardinal which has a stabilator.

--
Dale L. Falk

There is nothing - absolutely nothing - half so much worth doing
as simply messing around with airplanes.

http://home.gci.net/~sncdfalk/flying.html