<kuid2:29535:100557:1> OBB 1146

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OBB 1146 Austria.
In 1974, Austrian State owned locomotive builder Simmering-Graz-Pauker (SGP) issued two prototype units of the Class 1044. The design incorporated stepless thyristor control and a bogie torsion system to transfer weight from one wheelset to another when tractive effort is applied to the body. These features provide a very high factor of adhesion.
Spring controlled lateral motion reduces transverse forces applied to the wheelsets when negotiating curves; and the locomotive's formidable one-hour rating of over 7,000hp makes it ideal for working Austria's gruelling alpine railways.
The succesful prototype led to orders for 96 units, and the Class have seen frequent service hauling express passenger and heavy freight services over the 1 in 32 (3.1%) grades of the Arlberg ramp.
Between 2002 and 2005, the 1044.2 subseries became the 1144.2 subseries, being retrofitted for usage on push–pull trains. The 1044.0 subseries was also converted to the 1144 series between 2009 and 2013, being fitted with new GSM-R cab radios, modernized PZB 90 and SIFA safety systems and new LED headlights. The problems with the previous push–pull control were also fixed, and this refurbishment showed the success of this program that was applied to the older 1042 series that were converted to the 1142 series.
The locomotives can be seen on most Austrian mainlines and southern parts of the German railway network. Some locomotives, however, are hired to RCC Germany, a private railway operator, and use them up to Bremerhaven. Before the introduction of the Taurus, these locomotives were used for hauling express trains to Munich.
Model: 1044/1144
Power: 5280kW
Propulsion: 15kV 16 2/3 Hz AC
Max.Speed: 160km/h
Built: 1974-1995