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Bombardier TWINDEXX Swiss Express
Swiss Federal Railways RABDe 502 and RABe 502
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Switzerland | 2012
62 produced
RABe 502 203 as IR 200 variant in January 2016 in Ossingen
RABe 502 203 as IR 200 variant in January 2016 in Ossingen
Kabelleger / David Gubler

Under the Name TWINDEXX Swiss Express, Bombardier produced a total of 62 double-decker high speed trains for the SBB. SBB also calls these trains “FV-Dosto”. In contrast to the TWINDEXX Vario that is being offered for commuter traffic, this variant has traction motors distributed along the train. In both four- and eight-car variants, three quarter of all cars are equipped with two traction motors in one of the bogies, making 3,750 or 7,500 kW in total.

A special feature of these trains is the roll compensation that is not a tilting system as such, but compensates for the rolling movements in curves and allows for higher average speeds. For use in inter-regional service, there is the four-car variant IR 100 with a total length of 100 m and the eight-car IR 200 with a total length of 200 m. The IC 200 is being used for long-range intercity traffic and also consists of eight cars, including a dining car. The official type designations of SBB are RABe 502 and RABDe 502, where the D designates the additional dining car.

Although these trains were originally planned to be introduced in 2013, this only happened in 2018 due to various problems. These included software issues, but also problems with the roll compensation. Especially passengers in the upper deck complained about great discomfort in certain curves. So SBB decided to disengage the system for the time being and to lower curve running speeds in exchange for a better passenger comfort. In the near future, the suspension system is to be upgraded, allowing to remove the roll compensation equipment altogether.

VariantIR 100IR 200IC 200
General
Built2012-2022
ManufacturerBombardier, Alstom
Axle config2-B+2-B+2-2+B-2 2-B+2-B+2-2+2-2+B-2+B-2+B-2+B-2 
Gauge4 ft 8 1/2 in (Standard gauge)
Seats340696621
Dimensions and Weights
Length331 ft 4 3/8 in658 ft 1 5/8 in
Rigid wheelbase8 ft 2 7/16 in
Empty weight507,063 lbs998,693 lbs
Service weight595,247 lbs1,188,290 lbs
Axle load39,683 lbs
Boiler
VariantIR 100IR 200IC 200
Power Plant
Power
Power sourceelectric - AC
Electric system15.000 V 16⅔ Hz
Hourly power5,029 hp (3,750 kW)10,058 hp (7,500 kW)
Top speed124 mph
Starting effort54,179 lbf108,358 lbf
Calculated Values
EMU
regional
long distance
twin deck
Bombardier multiple unit
Bombardier Twindexx
last changed: 12/2024
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