NS 1900

Last updated
NS 1900
HSM 425 Werkspoor.jpg
Type and origin
Power type Steam
Builder Werkspoor
Build date1907-1913
Total produced40
Specifications
Configuration:
   Whyte 4-4-0
   UIC 2'B
Leading dia. 991 mm (3 ft 3.0 in)
Driver dia.2,016 mm (6 ft 7.4 in)
Tender wheels1,105 mm (3 ft 7.5 in)
Length:
  Over beams16,978 mm (55 ft 8.4 in)
1913-1914: 16,951 mm (55 ft 7.4 in)
Height4,365 mm (14 ft 3.9 in)
Loco weight52.2 t (57.5 short tons; 51.4 long tons)
Tender weight39.2 t (43.2 short tons; 38.6 long tons)
Fuel type Coal
Fuel capacity4 t (4.4 short tons; 3.9 long tons)
Water cap.17 m3 (3,700 imp gal)
Firebox:
  Grate area2.04 m2 (22.0 sq ft)
Boiler pressure10.5 bar (152 psi) superheated
Heating surface:
  Firebox10 m2 (110 sq ft)
  Tubes71 m2 (760 sq ft)
Superheater:
  Heating area23 m2 (250 sq ft)
Cylinders 2
Cylinder size 500 mm × 660 mm (20 in × 26 in)
Valve gear Stephenson
Performance figures
Maximum speed100 km/h (62 mph)
Tractive effort 59.23 kN (13,320 lbf)
Career
OperatorsSS, NS
Power classHSM: PV1, NS: PO1
NumbersHSM: 421-460,
NS: 1901-1940
Withdrawn1946-1948
DispositionAll scrapped

The NS 1900 was a series of express train steam locomotives of the Dutch Railways (NS) and its predecessor Hollandsche IJzeren Spoorweg-Maatschappij (HSM). [1]

After the first tank locomotives 771-772 (NS 5700) with superheater, the HSM ordered other locomotives with a superheater. Like the 771–772, these were built by Werkspoor in 1907. The HSM gave them numbers 421–425. In a way, these locomotives can be regarded as a further development of the 350-408 (NS 1600) with a superheater. After good experiences, including a coal saving of 15 to 17%, another order was places for a further 34 locomotives which were between 1908 and 1913. [2]

When the locomotives and rolling stock fleets of the HSM and the Maatschappij tot Exploitatie van Staatsspoorwegen was merged in 1921, the locomotives of this series were given the NS numbers 1901–1940. During the Second World War, a number of locomotives were taken eastward, No's 1908, 1934, 1935 and 1937 never returned and were reported missing. The rest were disposed of between 1946 and 1948. No locomotive has been preserved.

Lot no.BuiltHSM numbersNS numbersWithdrawnnotes
183-1871907421-4251901-19051946-1948
227-2291908426-4281906-19081946-1948NS 1906 Missing after world war II
230-2331909429-4321909-19121946-1948
238-2441909433-4391913-19191946-1947
245-2471910440-4421920-19221946
266-2701911443-4471923-19271946-1947
289-2951912448-4541928-19341946-1948NS 1934 Missing after world war II
322-3271913455-4601935-19401946-1947NS 1935 and 1937 Missing after world war II
NS 1902 - HSM 422 (ca. 1910) NS 1900 - NS 1902.jpg
NS 1902 - HSM 422 (ca. 1910)

Sources and references

  1. NVBS: Op de Rails. J.J.K.: Iets over de geschiedenis van het materieel van de Nederlandsche Spoorwegen. 7-1940.
  2. Waldorp, H. (1986). Onze Nederlandse stoomlocomotieven in woord en beeld (7e, gew. dr ed.). Almaar: De Alk. ISBN   90-6013-947-X. OCLC   63833327.

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