Definition
An aircraft pitch and bank position in which the longitudinal axis is parallel to the horizon and the wings are not banked, producing neither a climb, descent, nor turn when held in stable air.
Plain English
The nose is on the horizon and the wings are even, so the aircraft is flying flat rather than climbing, descending, or turning.
Context Anchor
Used in instrument flying and thunderstorm-encounter guidance, especially when the pilot is told to maintain control in turbulence without chasing every instrument movement.
Derivation
From Latin libella, a carpenter's level — a tool that shows when something is flat relative to the horizon. The same idea carries into aviation: the aircraft is 'level' when its reference line sits flat against the horizon.
Why Pilots Care
Maintaining level attitude reduces structural loads and spatial disorientation risk when turbulence or instrument failure occurs inside a thunderstorm.
Grounding Statement
If rough air lifts or drops the airplane, the goal is to keep the wings and nose in the normal level-flight position, not to fight every small movement immediately.
Intuition Check
“Attitude” does not mean mood here; it means the airplane’s position compared with the horizon. “Level” does not mean perfectly frozen at one altitude; it means holding the normal level-flight position.
Example Sentence 1
On entering the thunderstorm, the pilot focused on maintaining a level attitude and accepted the altitude variations caused by updrafts and downdrafts.
Example Sentence 2
During the instrument scan the pilot confirmed level attitude before making any heading change.