Sm1
Sm1 6030 in Riihimäki 20.4.1997. Photo by Kimmo Kotimäki
Sm1 was the first electric train in Finland. First unit was manufactured
in the year 1968 and last 1973. With Sm1 began electric traffic between
Helsinki and Kirkkonummi in the year 1969.
Sm1 has motor carriage Sm1 and driving
van
trailer Eio or Eiob. Both Sm1 and Sm2 achieve between 0 and 30 km/h
an acceleration of 0.84 m/s2 when full and an acceleration of
1.13 m/s2 when empty. Maximum six Sm2 and Sm1 can be coupled
together to build a train with 12 wagons, but normally the length of the
platform limits this to five Sm1 or Sm2 units [1].
Trains were generally reconstructed in years 1996-2000. The
test unit 6006 of reconstruction was rebuilt in 1994. Weigth
of the unit has grown a bit because of the reconstruction.
Technical details
Width: 3074 mm
Heigth: 3900 mm
Length over buffer: Sm1: 25900 mm, Eio and Eiob: 25900 mm, Sm1-EMU:
53250 mm
Axel arrangement: Sm1-EMU: Bo'Bo'+2'2'
Number of axels: Sm1-EMU: 8, which 4 with power
Wheel diameter: new 920 mm, fully worn 860 mm
Bogie-to-bogie length: Sm1: 18800 mm, Eio, Eiob: 18800 mm, Sm1-EMU:
48900 mm
Weigth in running order originally: Sm1: 58,6 t, Eio, Eiob: 35,6 t, Sm1-EMU:
94,2 t
Max. axel weigth: 18,8 t
Power supply system: 25 kV, 50 Hz
Continuous power rating: 860 kW
Max. tractive effort: 85 kN
Max. acceleration: 1.2 m/s2
Max. speed: 120 km/h
Number of sitting places: 180
Manufacturer: Valmet Oy Aeroplane Factory, Tampere
Manufacturer of electrical parts: Oy Strömberg Ab
Number of ever build: 50
VR numbers of units: 6001-6050
Sources
-
Mikko Nyman, Sähkömoottorijunat 25 vuotta,
Resiina 1/94, s. 41.
-
book Valtionrautatiet 1962-1987 p. 404
-
Jarkko Tapani
Ahonen: Sm1
Note that I don't work for VR.
Feedback welcomed at
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Created Thu, Oct 9 1997 Kimmo Kotimäki. Updated
Tue, Mar 6 2007
Kimmo Kotimäki.