Plain English Meaning

Streamlined covers that fit over the wheels of an airplane with fixed landing gear, helping the airplane slip through the air more cleanly.

Full Definition

Aerodynamic fairings fitted over fixed (non-retractable) landing gear wheels to reduce drag by smoothing airflow around the wheel and tire.

Context Anchor

Seen during preflight inspection and in discussions of fixed landing gear, tire condition, brake access, and airplane drag.

Derivation

Called 'pants' because they wrap around the wheel the way trousers wrap around legs. The shape is informal but descriptive — a snug, streamlined cover.