Definition
Yawing is rotation of the aircraft about its vertical (normal) axis, which passes through the aircraft from top to bottom. It moves the nose of the aircraft left or right and is controlled primarily by the rudder.
Plain English
Yawing is when the nose of the aircraft swings left or right, like turning your head to look sideways. The whole aircraft pivots around an imaginary line running straight up and down through its center.
Context Anchor
Seen when learning the aircraft's three axes of movement and when discussing directional control with the rudder.
Derivation
From the older nautical term 'yaw,' meaning a ship's deviation off its intended course. Aviation borrowed the term directly from sailing, where a yawing ship swings its bow side to side. The same idea applies to an aircraft swinging its nose left or right.
Why Pilots Care
Uncontrolled yawing creates uncoordinated flight, adds drag, and raises the risk of a stall or spin if left uncorrected.
Grounding Statement
If the airplane's nose moves left or right while the airplane stays generally level, you are seeing yawing.
Intuition Check
Yawing does not mean the airplane is banking or tilting its wings. Yawing is nose-left or nose-right movement around the aircraft's vertical axis.
Example Sentence 1
When the student pressed the right rudder pedal, the aircraft began yawing to the right.
Example Sentence 2
Crosswind landings often require deliberate yawing to keep the fuselage aligned while the wings stay banked.