| GE AC6000CW | |
 |
|
| CSX 627 at Pinner's Point in Portsmouth, Virginia. Note the enlarged radiator section overhanging the rear of the unit. | |
| Power type | Diesel-electric |
|---|---|
| Builder | GE Transportation Systems |
| Model | AC6000CW |
| AAR wheel arr. | C-C |
| Gauge | 4 ft 81⁄2 in (1,435 mm) |
| Wheel diameter | 42 in (1.067 m) |
| Length | 76 ft 0 in (23.16 m) |
| Width | 10 ft 3 in (3.12 m) |
| Height | 16 ft 0 in (4.88 m) |
| Weight | 423,000 lb (191.9 t) max |
| Fuel capacity | 5,500 US gal (21,000 l; 4,600 imp gal) |
| Prime mover | GE 7HDL16 |
| Engine type | 45° V16, four stroke cycle |
| Aspiration | Twin turbocharger, model 7S1408D |
| Displacement | 175 liters (10,700 cu in) |
| Alternator | GE GMG201 |
| Traction motors | GE GEB13, |
| Top speed | 75 mph (121 km/h) (worn wheels) |
| Power output | 6,250 hp (4,660 kW) |
| Tractive effort | Starting: 181,000 lbf (810 kN)-200,000 lbf
(890 kN) Continuous: 166,000 lbf (740 kN) @ 11.6 mph (18.7 km/h) |
| Train brakes | WABCO EPIC 3102 Electro-Pneumatic, others with WABCO 26L pneumatic |
The AC6000CW is a 6,250 horsepower (4,660 kW) diesel electric locomotive that is built by GE Transportation Systems. They are all used by major railroads in the United States, except for 8 units exported to BHP Billiton Iron Ore in Australia.
The AC6000CW was designed at the height of a horsepower race between the 2 major locomotive manufacturers, Electro-Motive Diesel, Inc. of London, Ontario & GE Transportation Systems of Erie, Pennsylvania in the early to mid 1990's. The goal was 6,000 horsepower (4,500 kW).
GE partnered with Deutz-MWM of Germany in 1994 to design and construct the engines for the locomotives. The first locomotive constructed was the "Green Machine" GE 6000, the nickname due to the Green paint scheme. The first production models were also built in 1995, CSXT 600-602, & UP 7000-7009. After testing was completed on the units by GE, they were released to their respective owners in late 1996.
The units started to suffer from various mechanical problems early on, with the most severe being the engine itself. There were major vibration problems, which was caused by the engine block walls being too thin. This in turn caused problems with the pair of turbochargers on the engine. These problems caused GE to push back full production of the new unit until 1998. GE built 106 AC6000CW's for Union Pacific with the older, proven 7FDL Engine, rated for 4,390 hp (3,270 kW). These units were originally supposed to have the 6,000 HP 7HDL Engine after the problems were worked out with the engine, but this never occurred. GE considers these units as AC6000CW "Convertibles", while UP classifies them as CW44/60AC's or AC4460CW's. The AC6000CW ended production in 2001, although Union Pacific's 75xx series remains in daily use as of 2008, mostly on rock and gravel trains in Texas. Union Pacific designates these units as C60AC.
GE is currently performing electrical work and changing out the current 7HDL engines with a new 16-Cylinder GEVO , 6,000 hp (4,500 kW) engine on several CSXT and BHP units. This is essentially creating an ES60AC, but neither CSXT nor GE reclassifies the locomotives, owing to the fact that these locomotives still retain the original computer systems and intercooling system of the AC6000CW. So far, 4 units have undergone the change: CSXT 606, 620, 628 and 640. The work is being performed by GE at CSXT's Waycross, GA locomotive facilities. Plans are for all units to be rebuilt eventually. There are no external changes to the locomotive, though they don't "roar" like their as-built sisters.
|
||||||||||||||||||||||||||||||||
|
|||||||||||||||||
|
|
Wikis
Quiz
Map
Search
