Definition
A condition in which the aircraft maintains its pitch attitude with no sustained control force required from the pilot, achieved by adjusting the trim system so that aerodynamic loads on the elevator (or stabilator) are balanced for the current airspeed and load configuration.
Plain English
The airplane is trimmed so it flies hands-off at the chosen speed without the pilot having to push or pull on the controls.
Context Anchor
Seen in weight-and-balance discussions and before-takeoff checklist use, especially when checking how loading affects the airplane’s pitch control.
Derivation
‘Neutral’ comes from the Latin neutralis, meaning ‘neither one nor the other.’ Here it describes a state where the control force needed is neither push nor pull — it is balanced at zero.
Why Pilots Care
An aircraft that cannot be trimmed to neutral requires constant control pressure, increasing pilot workload and the risk of fatigue or loss of control.
Analogy
It is like setting a car’s steering wheel straight before judging whether the car pulls left or right. Neutral trim gives you a centered starting point.
Intuition Check
Neutral does not mean the airplane is automatically balanced or safe to fly. It means the trim system is centered and is not adding a nose-up or nose-down bias.
Example Sentence 1
Once established in cruise, the pilot adjusted the trim wheel until the aircraft held altitude in neutral trim with no pressure on the yoke.
Example Sentence 2
During preflight weight-and-balance calculations, the pilot verified that the planned loading would allow neutral trim throughout the expected speed range.