Plain English Meaning

A device spun by the engine that produces electricity to run the airplane's electrical systems and keep the battery charged.

Full Definition

A rotating electrical machine that converts mechanical energy into direct current (DC) electrical energy through electromagnetic induction. In aircraft, it is driven by the engine and supplies electrical power to the aircraft systems and charges the battery while the engine is running.

Context Anchor

Seen in aircraft electrical system descriptions, cockpit electrical checks, abnormal procedure checklists, and generator warning- discussions.