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DSB Class MH

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DSB Class MH

MH 301–420
MH 346 at the Danish Railway Museum (2005).
Type and origin
Power type Diesel
Builder Frichs
Build date 1960–1965
Total produced 120
Specifications
UIC classification C
Gauge 1,435 mm (4 ft 8 12 in)
Wheel diameter 1,150 mm (3 ft 9 14 in)[1]
Length 9.44 m (30 ft 11 58 in)
Width 3.13 m (10 ft 3 14 in)[1]
Height 4.29 m (14 ft 78 in)[1]
Locomotive weight
  • 40.5 t
  • 45.0 t (with extra ballast)[2][3]
Prime mover MAN W8V17,5/22A[2][3]
Engine type Straight-8 diesel[4]
Cylinders 8
Cylinder size 175 mm × 220 mm (6.9 in × 8.7 in)[2]
Transmission Hydraulic, Voith L37U[3]
Performance figures
Maximum speed 60 km/h (37 mph)
Power output 440 hp (330 kW)
Tractive effort 135 kN (30,000 lbf)[1]
Career
Operator(s) DSB

The class MH was a class of diesel-hydraulic locomotives of the Danish State Railways (DSB), built by Danish manufacturer Frichs. A total of 120 units, numbered 301–420, were delivered between 1960 and 1965. They were primarily used for shunting and light freight traffic.

Their design was strongly based on that of the slightly earlier MH 201–203 built by Henschel, using the same MAN diesel engine and Voith hydraulic transmission.[5]

Apart from a few units damaged in accidents, the locomotives were mostly retired between the late 1980s and 2000.[6]

Notes

  1. ^ a b c d Løvborg & Mogensen 2000, p. 11.
  2. ^ a b c Christensen & Poulsen 2009, p. 207.
  3. ^ a b c Lauritsen 1997, p. 27.
  4. ^ Olesen 2005, pp. 161–164.
  5. ^ Poulsen 2013, p. 93.
  6. ^ Christensen & Poulsen 2009, pp. 208–209.

Bibliography

  • Christensen, Peter; Poulsen, John (2009). MotorMateriel 7: Motormateriellet fra Frichs og Scandia 1932-1978 (in Danish). Bane Bøger.  
  • Lauritsen, Tom (1997). Danske lokomotiver og motorvogne 1997 (in Danish). Frank Stenvalls Förlag.  
  • Løvborg, Eilert; Mogensen, Peter, eds. (2000). DSB materiel i drift (in Danish) (2nd ed.). DSB drift.  
  • Olesen, Thomas Nørgaard (2005). Lokomotivfabrikken Frichs (in Danish).  
  • Poulsen, John (2013). MotorMateriel 8: Motormateriellet fra tyske fabrikker efter 1945 (in Danish). Bane Bøger.  

External links

  • DSB Litra MH at jernbanen.dk (Danish)
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