GE ES44AC at a glance
| Builder | GE Transportation |
|---|---|
| Power | 4,400 hp |
| Series | GE Evolution Series |
| Traction | AC traction |
| Wheel arrangement | C-C — six powered axles |
| Prime mover | GE GEVO-12 four-stroke diesel |
| Role | Heavy North American road freight |
What ES44AC means
ES identifies GE's Evolution Series, 44 refers to the 4,400-horsepower rating, and AC identifies alternating-current traction motors.
Why AC traction matters
AC traction systems offer strong low-speed adhesion and are especially useful in heavy-haul service. Modern electronic controls manage wheel slip and distribute power to the traction motors.
How to identify it
Look for a large six-axle GE road locomotive with the broad radiator section at the rear associated with Evolution Series cooling needs. Railroad-specific details and later rebuilds mean the road number remains one of the best identification tools.
Where it works
ES44AC-family locomotives became common on coal, grain, intermodal and general merchandise trains. They can operate on the head end or as distributed power in the middle or rear of long trains.
Identification reminder
Locomotives are rebuilt, repainted and modified during long careers. Use several clues together—road number, trucks, hood and radiator details, cab shape and known roster history—rather than relying on paint alone.
Want to know more?
Ask Ask the Conductor about this locomotive, how it works, where it ran or how it compares with another model.
Ask the Conductor