Definition
The act of advancing or retarding the throttle control to change engine power output. In instrument flight, throttle movement is performed smoothly and in measured amounts so that pitch, bank, and trim adjustments can keep pace with the resulting changes in airspeed, altitude, and aircraft attitude.
Plain English
Pushing the throttle forward to add power, or pulling it back to reduce power. How quickly and how far you move it directly affects how the airplane responds.
Context Anchor
Used in aircraft control discussions, especially during instrument flight when small power changes help control airspeed and aircraft performance.
Derivation
Throttle comes from an old English word meaning 'to choke' — the throttle controls how much air-fuel mixture is allowed into the engine, effectively choking or opening the flow. Movement of that control is what adjusts power.
Why Pilots Care
Smooth throttle movement prevents unwanted climbs, descents, or airspeed changes when flying by instruments alone.
Intuition Check
Throttle movement does not mean the throttle shaking or moving by itself. Here it means the pilot intentionally moving the throttle control to change power.
Example Sentence 1
During the level-off, she used a small, smooth throttle movement to set cruise power without disturbing the airplane's pitch.
Example Sentence 2
During the instrument approach, gradual throttle movement helped manage descent rate without pitching the nose.