Definition
Pilot input applied to the right rudder pedal to yaw the airplane's nose to the right, most commonly used to counteract the left-turning tendencies that occur at high power settings, low airspeed, and high angles of attack.
Plain English
Pushing the right pedal with your right foot to keep the nose of the airplane straight, especially when the airplane naturally wants to swing left during slow flight, climbs, and takeoffs.
Context Anchor
You will see this term in slow flight, takeoff, climb, go-around, and other high-power situations where the airplane may need right rudder to stay coordinated and pointed where intended.
Derivation
Rudder comes from an old word for a steering oar on a boat. That helps because an airplane rudder also steers direction, but through the air instead of water. Right simply names the direction of the input and the resulting nose movement.
Why Pilots Care
Keeps the aircraft coordinated, prevents slips or skids, and reduces the risk of loss of control at low airspeed.
Grounding Statement
In slow flight with added power, the airplane may try to swing its nose left, and right rudder is the foot input that keeps the nose where you want it.
Intuition Check
Right rudder does not mean the “correct” rudder input in every situation. It specifically means using the right rudder pedal to move or hold the nose to the right.
Example Sentence 1
As the student added full power for the slow flight recovery, the instructor reminded her to add right rudder to keep the nose tracking straight.
Example Sentence 2
High power and low airspeed created a left-turning tendency, so right rudder was needed to stay straight.