DBAG Class 128
AEG/Adtranz/Bombardier 12X |
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128 001 in UNICEF special livery in 1996. |
| Type and origin |
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| Power type | Electric |
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| Builder | AEG Schienenfahrzeuge |
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| Serial number | 22500 |
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| Model | 12X |
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| Build date | 1994 |
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| Total produced | 1 |
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| Rebuilder | Adtranz |
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| Rebuild date | 1998 |
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| Performance figures |
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| Maximum speed | achieved in tests: 283 km/h (176 mph)
design: 250 km/h (155 mph)
service: 220 km/h (137 mph) |
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| Power output | continuous: 6.4 MW (8,600 hp)
short-term: 7.2 MW (9,700 hp) |
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| Tractive effort | starting:
300 kN (67,400 lbf)
continuous up to 90 km/h (56 mph):
250 kN (56,200 lbf) |
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| Brakeforce | regenerative: 250 kN (56,200 lbf) |
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128 001, as registered at Deutsche Bahn, or 12X, as named by its manufacturer AEG Schienenfahrzeuge and its successive owners ADtranz and Bombardier Transportation, is an experimental high-performance electric locomotive built in 1994, which was operated as testbed and test locomotive until 2010. The design of the locomotive featured several technological innovations, including power electronics using new types of semiconductors and water cooling, a new final drive concept, a new bogie concept, and protruding windflaps for improved aerodynamics that gave the locomotive a unique look.
The development of the locomotive was initiated in anticipation of a major tender for universal locomotives by German railways, but moved towards a modular design when the railways moved towards tendering different types of locomotives for different services. The 12X was the basis of a locomotive class for medium-weight freight trains, the DBAG Class 145, the further development of which ultimately led to Bombardier's TRAXX modular locomotive product platform.
