The Locomotive -

: Draw power from external sources like overhead lines or a third rail. Core Components

: The primary power source (boiler for steam, diesel engine for others). The Locomotive

: Use a diesel engine to generate power, often transmitted to wheels via electrical traction motors (Diesel-Electric) or gearboxes. : Draw power from external sources like overhead

: Use a boiler to create high-pressure steam that drives pistons and rods to turn the wheels. most locomotives share essential systems:

: Convert the engine's power into physical movement on the rails.

: Critical for safety; includes automatic brakes for the train cars and independent brakes for the locomotive itself.

Regardless of the type, most locomotives share essential systems: