Stadler Regio-Shuttle RS1

The Stadler Regio-Shuttle RS1 is the first widely used, new-generation, diesel railcar in Germany and Czech Republic for local railway services. Its most characteristic feature is the trapezium-shaped window frames. The Regio-Shuttle is classified by the Deutsche Bahn as Class 650, by the České Dráhy as Class 840 or Class 841, however numerous private railways have their own Regio-Shuttles.

Stadler Regio-Shuttle RS1 (DBAG Class 650)
Regio-Shuttle der WEG
Number(s)DB 650 001-027/100-122/201-203/301-327
Quantity497 (as at: Sep 2011)
ManufacturerStadler Rail AG
(previously: Adtranz)
Year(s) of manufacture1996–2013
Axle arrangementB’B’
Length24.460–25.500 m (80 ft 3.0 in–83 ft 7.9 in)
Height3.7 m (12 ft 2 in)
Width2.9 m (9 ft 6 in)
Empty weight40.0 t (39.4 long tons; 44.1 short tons)
Axle load10.0 t (9.8 long tons; 11.0 short tons)
Top speed120 km/h (75 mph)
Installed power2×257 kW (345 hp);=514 kW (689 hp)
Power index12,85 kW/t
No. of traction motors2
Transmissionhydrodynamic-mechanical (hydraulic)
Train protectionSifa, PZB90
Seats71–101 (depending on variant)
Standing places83–94 (depending on variant)

Technical information

Originally a product from the firm of ADtranz, the RS1 is now being built and sold by Stadler Rail AG, since Bombardier Transportation had to sell the site at Berlin-Wilhelmsruh in 2001 for legal reasons when they took over ADtranz. The RS1 is a 1,435 mm (4 ft 8 1⁄2 in) standard gauge railbus built to UIC standards, which therefore can withstand longitudinal forces of 1,500 kN (340,000 lbf); it is available with centre buffer couplings or the usual European Buffers and chain couplers. 65% of the vehicle floor is low-level and designed for a platform height of 55 cm (22 in). On the Schönbuchbahn a special variant designed for 76 cm (30 in) platforms is in use. The railbus has a high-level floor over the two four-wheeled bogies at each end.

Two independent diesel-mechanical drive units, e.g. from MAN, run either on diesel fuel or Biodiesel from rape seed oil, each drive both axles on one of the two bogies.

The RS1's appearance is striking because its window design looks like a timber-framed bridge support (or Warren truss), the angled bodyshell pillars being visible at the windows. This construction was originally proposed to ABB (later ADtranz) by Design Triangle during a research study into weight reduction for high speed trains. The study, reported in a paper to the Institution of Mechanical Engineers in 1996, showed that the diagonal pillar concept allowed mass reduction, improved passenger views and flexibility of seating layout, whilst maintaining adequate body strength and stiffness.[1] ABB applied for a patent on the design. The Bombardier Itino uses a similar angled window pillar design. A similar window pillar design had been used on the Schienenzeppelin railcar in 1929.

From an operational point of view the Regio-Shuttle may be used for one-man operations on full gauge railways without any restrictions. Its relatively small capacity (maximum under 170 passengers) is balanced by the fact that the vehicle can be driven in multiples of up to seven units. A rake of five RS1's can thus handle a maximum of just under 850 passengers, albeit somewhat uneconomical compared with a locomotive-hauled train due to the fuel consumption of its ten diesel motors.

In 2006 a Regio-Shuttle was converted by Voith. Amongst other things it was to have stricter exhaust emission and the top speed was to be raised to 140 km/h. A production series was to follow,[2] however it looks as if the production of the Regio-Shuttle ceased in 2006. In 2007 and 2008 further orders followed from the ODEG,[3] the HzL and Rhenus Veniro. Including the machines on order the total number of manufactured Regio-Shuttles comes to 365 units. At the end of June 2008 the Deutsche Bahn AG[4] agreed a contract with Stadler for the delivery of up to 60 Regio-Shuttles. These will be called off if DB Regio is successful in winning tenders and needs Regio-Shuttles for the services envisaged.

Current operators

Overview of railway companies

The following railway companies have Regio-Shuttle RS1's in their fleet:

Employment by Deutsche Bahn

In 1999 the Deutsche Bahn began to place Class 650 railbuses into service and currently runs 74 units (as at: June 2005). They are numbered 650 001–027, 650 100–122, 650 201–203 and 650 301–321. 650 100–119 and 650 201–203 were funded by Baden-Württemberg. 650 001–027 and 650 100–122 are identical, 650 201–203 and 650 301–321 are cyclist shuttles, but otherwise constructionally identical with the Regio-Shuttles. The vehicles are operated from Tübingen and Ulm by DB subsidiaries DB ZugBus Regionalverkehr Alb-Bodensee (RAB). Since May 2000 all the vehicles have been in daily service.

Since 2007, numbers 650 322–327, funded by DB Regio Bayern, have also been in operation. In addition, the WestFrankenBahn has taken over a railbus from the Kahlgrundbahn, number 650 997. This railbus has since been transferred to the SüdostBayernBahn and was deployed in 2008 on the Traun-Alz-Bahn between Traunstein and Traunreut.

Employment by České Dráhy

In 2011 České Dráhy classified new type of regional train as Class 840 (two magnetic track brakes for steep-grade service; gearing for 100 km/h)[5] for routes in Liberecký kraj and little different Class 841 (one magnetic track brake; maximum speed 120 km/h) for routes in Kraj Vysočina. From 2011 to 2012 was delivered 16 pieces of 840 (840 001-016) to Liberecký kraj. In 2011 was delivered 841 001 to Kraj Vysočina, next 16 pieces (841 002-017) will be delivered from 2012 to 2013.

References
  1. "Diagonal Window Pillars - A New Vision for Passengers", Institution of Mechanical Engineers, London, 1996
  2. Press release from Voith Turbo on 16 October 2006
  3. Press release from ODEG on 6 October 2008 Archived 21 July 2011 at the Wayback Machine
  4. Press release from Deutsche Bahn AG on 3 July 2008
  5. Bittner, Jaromir; Křenek, Jaroslav; Skála, Bohumil; Šrámek, Milan (2010), Tschechische und slowakische Triebfahrzeuge, Prague: Gradis Bohemia, s.r.o., ISBN 978-80-86925-09-7. p. 217
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