General Electric ET44AC and ET44C4
United States 2015 1092+ produced
The ET44AC is a derivative of the ES44AC, which complies with the EPA Tier 4 emissions standard. Visual distinguishing features are the raised fairing on the exhaust system and larger coolers at the rear. In the meantime, no variant with a DC traction motors is offered anymore. The more than 1,000 copies so far are spread mostly between the BNSF, Canadian National, CSX and Union Pacific. The BNSF locomotives are ET44C4, which, like the ES44C4, only have four traction motors and are suitable for faster, not quite as heavy freight trains.
Technical data
General
| Property | ET44AC | ET44C4 |
|---|---|---|
| Built | seit 2015 | |
| Manufacturers | General Electric | |
| Wheel arrangement | C-C | A1A-A1A |
| Gauge | 1,435 mm (Standard gauge) | |
Dimensions and weights
| Property | ET44AC | ET44C4 |
|---|---|---|
| Length | 22.71 m | |
| Service mass | 196 t | 188.7 t |
| Adhesion mass | 196 t | 126.1 t |
| Rigid wheelbase | 4.01 m | |
| Axle load | 32.7 t | 31.5 t |
Power plant
| Property | ET44AC | ET44C4 |
|---|---|---|
| Engine | GE GEVO-12 | |
| Engine type | V12 diesel | |
Power
| Property | ET44AC | ET44C4 |
|---|---|---|
| Power source | diesel-electric | |
| Indicated power | 3,281 kW (4,461 PS) | |
| Top speed | 113 km/h | |
| Starting effort | 814.0 kN | 641.0 kN |
Calculated values
| Property | ET44AC | ET44C4 |
|---|---|---|
| Factor of adhesion | 1 : 2.36 | 1 : 1.93 |
| Power-to-weight ratio | 16.7 kW/t | 17.4 kW/t |
| Adhesive weight/Total | 1 : 1.00 | 1 : 1.50 |
