Definition
The simultaneous, balanced application of aileron and rudder control inputs in matching amounts and timing so the airplane rolls into or out of a turn without slipping or skidding. The aileron sets the bank; the rudder offsets the adverse yaw produced by the deflected ailerons, keeping the longitudinal axis aligned with the flight path.
Plain English
Using the control wheel and rudder pedals together in the right proportions so the airplane turns smoothly, without sliding sideways through the air.
Context Anchor
Used in instrument flying when entering, maintaining, and rolling out of standard rate turns by reference to the flight instruments.
Derivation
Coordinated' comes from the Latin 'co-' (together) and 'ordinare' (to arrange in order). Here it means the two controls are arranged to work together in proper proportion, not used independently or one after the other.
Why Pilots Care
Ensures balanced flight that prevents disorientation and maintains control in instrument conditions.
Grounding Statement
In a smooth instrument turn, the hand starts the bank and the feet keep the airplane’s nose moving cleanly with that bank.
Intuition Check
“Pressure” here does not mean air pressure or hydraulic pressure. It means the pilot’s applied force on the control yoke or stick and the rudder pedals.
Example Sentence 1
She rolled into the standard rate turn with coordinated aileron and rudder pressures, keeping the ball centered throughout the entry.
Example Sentence 2
Maintaining coordinated aileron and rudder pressures helped keep the airplane on altitude during the heading change.