Definition
Flight conditions in which the aircraft is subjected to irregular, rapid, and often unpredictable movements caused by disturbed airflow. These disturbances can come from convective activity, wind shear, mountain waves, frontal boundaries, jet streams, or the wake of other aircraft, and they cause the aircraft to pitch, roll, yaw, and change altitude without pilot input.
Plain English
Air that is bumpy and unsettled, pushing the aircraft around in ways the pilot did not command.
Context Anchor
Seen in instrument flying when the pilot is using the attitude indicator and other instruments to hold straight-and-level flight while the airplane is being disturbed by rough air.
Derivation
From the Latin turbulentus, meaning 'restless' or 'stirred up,' from turba ('crowd, commotion'). The aviation meaning keeps the same idea: air that is disturbed and chaotic rather than smooth and orderly.
Why Pilots Care
Requires continuous small control corrections to hold altitude, heading, and attitude.
Grounding Statement
Picture driving on a rough road: the car is still controllable, but small bumps keep trying to move it off the exact path you intended.
Intuition Check
Do not assume turbulent conditions always mean a storm or visible bad weather. The air can be turbulent even when the sky looks clear.
Example Sentence 1
In turbulent conditions, the pilot focused on the average reading of the attitude indicator and avoided overcorrecting for every small fluctuation.
Example Sentence 2
The airplane may pitch and roll slightly during turbulent conditions yet the attitude indicator still provides the reference needed to stay straight and level.