Plain English Meaning

A type of starter that uses an electric motor to turn the engine over directly until it starts running on its own.

Full Definition

An aircraft engine starter that uses an electric motor connected through a reduction gear and clutch to turn the engine crankshaft directly until the engine starts. When the starter switch is engaged, battery or external power drives the motor, which spins the crankshaft at sufficient speed for ignition to occur. Once the engine fires and runs under its own power, the starter is disengaged.

Context Anchor

Seen in aircraft engine systems, starting- descriptions, and discussions for -engine aircraft.