Pilot Lingo: What Does ‘Trimming’ Mean?

The easiest and most efficient way to fly a plane is by making as few control inputs as possible in the air. Every time a control is moved, a flight surface is deflected, resulting in drag and a (slight) aerodynamic penalty. Constantly making control inputs can also result in oscillations and might make a pilot (and their passengers) feel like they are “fighting” with the plane. Like driving a boat or car, smooth, even, and small inputs are the best way to fly.