NS 7000

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NS 7000
Type and origin
Power typeSteam
BuilderSächsische Maschinenfabrik, Hohenzollern
Build date1899–1903
Total produced10
Specifications
Configuration:
​
 • Whyte4-4-0T
 • UIC2'B
Gauge1,435 mm (4 ft 8 1⁄2 in)
Leading dia.800 mm (2 ft 7 in)
Driver dia.1,350 mm (4 ft 5 in)
Length:
​
 • Over beams8,930 mm (29 ft 4 in)
Height3,800 mm (12 ft 6 in)
Loco weight37 t (41 short tons; 36 long tons)
Fuel typeCoal
Fuel capacity1 t (1.1 short tons; 0.98 long tons)
Water cap.3.5 m3 (770 imp gal)
Firebox:​
 • Grate area1.04 m2 (11.2 sq ft)
Boiler pressure12 kg/cm2 (170 psi)
Heating surface:​
 • Firebox5 m2 (54 sq ft)
 • Tubes48 m2 (520 sq ft)
Superheater:
​
 • Heating area20 m2 (220 sq ft)
Cylinders2
Cylinder size360 mm × 500 mm (14 in × 20 in)
Valve gearWalschaerts
Performance figures
Maximum speed75 km/h (47 mph)
Tractive effort4,030 kgf (8,900 lbf)
Career
OperatorsNS,SS and NCS
Power classNS: LO
NumbersNCS: 41–50
SS: 151–160
NS: 7001–7010
Withdrawn1947 - 1954
DispositionAll scrapped
Wikimedia Commons has media related to NS 7000.

The NS 7000 was a series of tank engines of the Dutch Railways (NS) and its predecessors Maatschappij tot Exploitatie van Staatsspoorwegen (SS) and Nederlandsche Centraal-Spoorweg-Maatschappij (NCS).

History[edit]

In 1899, the NCS bought a tank engine from the Sächsische Machinenfabrik in Chemnitz for use on the local railway lines.[1] Inspiration was taken from the 2.311 to 2.380 series of the French Compagnie des chemins de fer du Nord.[2] After the locomotive entered service and proven itself with the NCS, a follow-up order was placed for four more locomotives, which were put into service in 1901 as 42–45. No. 41 was delivered in the original green NCS livery, but Nos. 42-45 were painted in the new ocher yellow livery introduced in 1901 with olive green bands with white and red piping.[2] In 1901 all five locomotives 41-45 were sold to the Nederlandsche Buurtspoorweg-Maatschappij (NBM).

In 1902, a batch of three locomotives (Nos. 46-48) was delivered with another batch of two locomotives (Nos. 49–50) arriving the following year, these being built by Hohenzollern in Düsseldorf-Grafenberg.[2][3]

Modifications[edit]

All ten locomotives were built without a superheater. In 1909, Nos. 42 and 48 were fitted with a smokebox superheater, after favorable results had been obtained with express locomotives Nos. 19 and 21. After the superheater also produced favorable results with Nos. 42 and 48, Nos. 43, 47 and 50 were also fitted in 1910 and 1911. The superheater of No. 48 was removed in 1912 and received a fully occupied superheater. No. 41 received a flame tube superheater from Werkspoor in Amsterdam in 1914.[2] In 1916 the NCS bought back the five locomotives sold to the NBM.

In 1919, the NCS was taken over by the SS, with these locomotives being included in the SS numbering as Nos. 151–160. When the locomotive and rolling stock fleets of the HSM and the SS was merged in 1921, the locomotives of this series were given the NS numbers 7001–7010. The NS continued the fitting of superheaters, so that eventually all locomotives of this series were equipped with a superheater. Other changes carried out by the NS involved the installation of a sandbox on the boiler around 1924 and the removal of the bell after 1938.[3]

In and After NS service[edit]

The NS used these locomotives, among other routes, on the Haarlemmermeer lines, to replace the series 7700.[3]

From 1954 onwards, No. 7001 was used by the NS on the NTM line between Groningen and Drachten. No. 7001 was the last former NCS locomotive to be withdrawn in 1954, after which the locomotive served for several months as a static boiler for the Wilco factory in Assen. In 1955 the engine was scrapped in Veenendaal, after 55 years of service and 2.2 million kilometers traveled.[2]

NS 7009 was sold to the Kempensche Zinc company in Budel in 1951. The locomotive remained there under its NS number until 1967, when it was sold for scrap.[1]

Builder Lot no. Built NCS number SS number NS number Withdrawn Notes
Sächsische Machinenfabrik 2471 1899 41 151 7001 1954
Sächsische Machinenfabrik 2472 1901 42 152 7002 1952
Sächsische Machinenfabrik 2473 1901 43 153 7003 1951
Sächsische Machinenfabrik 2474 1901 44 154 7004 1952
Sächsische Machinenfabrik 2475 1901 45 155 7005 1952
Hohenzollern 1544 1902 46 156 7006 1954
Hohenzollern 1545 1902 47 157 7007 1948
Hohenzollern 1546 1902 48 158 7008 1953 Briefly named "zeist"
Hohenzollern 1618 1903 49 159 7009 1951
Hohenzollern 1619 1903 50 160 7010 1947

Gallery[edit]

The locomotive that inspired the NS 7000 serie. (Du Nord 2.342)
  • Steam locomotive no. 42 of the NCS (series 41–50, later series 151-160 of the SS and series 7000 of the NS) in Utrecht, near the Boorstraat.
    Steam locomotive no. 42 of the NCS (series 41–50, later series 151-160 of the SS and series 7000 of the NS) in Utrecht, near the Boorstraat.
  • Steam locomotive no. 42 of the NCS (series 41–50, later series 151-160 of the SS and series 7000 of the NS) with a local service in Utrecht.
    Steam locomotive no. 42 of the NCS (series 41–50, later series 151-160 of the SS and series 7000 of the NS) with a local service in Utrecht.
  • Steam locomotive no. 7008 (series 7000) of the NS with carriages along the platform of the Bovenkerk station.
    Steam locomotive no. 7008 (series 7000) of the NS with carriages along the platform of the Bovenkerk station.
  • Steam locomotive no. 7009 (series 7000) of the NS in the locomotive shed in Uithoorn.
    Steam locomotive no. 7009 (series 7000) of the NS in the locomotive shed in Uithoorn.
  • A train with an NS 7000 on the swing bridge over the Zijl near Leiden; circa 1930.
    A train with an NS 7000 on the swing bridge over the Zijl near Leiden; circa 1930.

Sources[edit]

  1. ^ a b "Garrattfan's Beginner's guide to locomotive kit building with DJH NS 7000 E198". www.modelrailroading.nl. Retrieved 2022-03-31.
  2. ^ a b c d e Wijck Jurriaanse, N.J. van (1973). De Nederlandsche Centraal Spoorwegmaatschappij. Rotterdam: Wyt. ISBN 90-6007-527-7. OCLC 905461491.
  3. ^ a b c Waldorp, H. (1986). Onze Nederlandse stoomlocomotieven in woord en beeld (7e, gew. dr ed.). Almaar: De Alk. ISBN 90-6013-947-X. OCLC 63833327.
  • A. Weijts: Tussen vuur en stoom. Uitg. Europese Bibliotheek, Zaltbommel, 2001. ISBN 90-288-2694-7.
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