On 2006-09-19, Mxsmanic wrote:
Is it always necessary to use the rudder to execute a coordinated
turn?

It depends on the aircraft. In something like a Piper Arrow, virtually
no rudder is required for the kind of gentle turns you might do when
flying IFR - you can practically fly it with your feet on the floor.

At the other extreme is something like most gliders which need
significant rudder input when initiating a turn. Somewhere in between
are aircraft such as the Cessna 140, which needs some rudder when
initiating any turn, but not boot loads of rudder.

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