NS 7100

Last updated
NS 7100
N.F.L.S. 1 Staatsieportret HSM 1051 NS 7101.jpg
N.F.L.S No. 1 in 1900.
Type and origin
Power type Steam
Builder Hohenzollern
Build dateSeries 1: 1901-1902
Series 2: 1907-1908
Total produced25
Specifications
Configuration:
   Whyte 2-4-2
   UIC 1'B1'
Gauge 1,435 mm (4 ft 8+12 in)
Leading dia. Series 1: 1,000 mm (3 ft 3 in)
Series 2: 1,100 mm (3 ft 7 in)
Driver dia.Series 1: 1,520 mm (5 ft 0 in)
Series 2: 1,540 mm (5 ft 1 in)
LengthSeries 1: 10,220 mm (33 ft 6 in)
Series 2: 10,473 mm (34 ft 4.3 in)
Height4,100 mm (13 ft 5 in)
Loco weightSeries 1: 43.2 t (47.6 short tons; 42.5 long tons)
Series 2: 49 t (54 short tons; 48 long tons)
Fuel type Coal
Fuel capacity2 t (2.2 short tons; 2.0 long tons)
Water cap.Series 1: 4.5 m3 (990 imp gal)
Series 2: 6 m3 (1,300 imp gal)
Firebox:
  Grate area1.42 m2 (15.3 sq ft)
Boiler pressureSeries 1: 12.4 kg/cm2 (176 psi)
Series 2: 12 kg/cm2 (170 psi)
Cylinders 2
Cylinder size 380 mm × 560 mm (15 in × 22 in)
Valve gear Stephenson
Performance figures
Maximum speedSeries 1: 55 km/h (34 mph) later 80 km/h (50 mph)
Series 2: 60 km/h (37 mph) later 80 km/h (50 mph)
Tractive effort series 1: 4,620 kgf (10,200 lbf)
series 2: 4,410 kgf (9,700 lbf)
Career
Operators NS
Numbersseries 1: NFLS: 1-10,
HSM: 1051-1060,
NS: 7101-7110
series 2: SS: 531-545,
NS: 7111-7125
Withdrawnseries 1: 1925-1949
series 2: 1947-1948
DispositionAll scrapped

The NS 7100 was a series of tank engines of the Dutch Railways (NS) and its predecessors Maatschappij tot Exploitatie van Staatsspoorwegen (SS), Hollandsche IJzeren Spoorweg-Maatschappij (HSM) and Noord-Friesche Locaalspoorweg-Maatschappij (NFLS).

Contents

Series NFLS 1-10 / HSM 1051-1061 / NS 7101-7110

At the beginning of the twentieth century, the NFLS ordered ten locomotives for local trains on the Leeuwarden - Stiens - Metslawier, Stiens - Harlingen, and Tzummarum - Franeker Halte lines from the Hohenzollern factory in Düsseldorf-Grafenberg. They were tank engines with the 1'B1' wheel arrangement, the leading axle of which was designed as an Adams axle. The first six locomotives entered service in 1901, followed by the other four in 1902. As of December 1, 1905, the operation of these lines was taken over by the HSM, whereby the locomotives and rolling stock was also taken over. The HSM renumbered the ten locomotives in the series 1051–1060.

When the locomotives and rolling stock fleet of the HSM and the SS was merged in 1921, the locomotives of this series were given the NS numbers 7101–7110. No. 7110 was withdrawn from service in 1925, followed by No. 7107 in 1939. At the end of World War II, Nos. 7104, 7105 and 7108 were taken to Germany, of which only No. 7108 was returned to service. Of the locomotives that remained in the Netherlands, Nos. 7102 and 7109 were not repaired from war damage. The locomotives that did return to service after the war were withdrawn in 1949.

Series SS 531-545 / NS 7111-7125

A few years after the delivery of the first batch of ten tank locomotives, the SS ordered about fifteen similar locomotives from the same factory. The first seven were put into service in 1907 as SS 531–537. The SS 538-545 followed in 1908. The SS used these locomotives on light passenger trains on local railway lines. When the locomotives and rolling stock fleet of the HSM and the SS was merged in 1921, these locomotives were given the NS numbers 7111-7125 after the original ten HSM locomotives. No. 7114 was withdrawn from service in 1925, followed by No. 7116 in 1936.

During the German invasion, No. 7124 was run into the Potmarge near Leeuwarden to stop the advance of the enemy troops. After the locomotive was salvaged, it was not repaired. At the end of the war, Nos. 7117, 7118, 7120, 7122 and 7123 were taken to Germany. The first four returned damaged after the war, but were never repaired. No. 7123 did not return at all and was scrapped at Hagenow in 1951. Of the locomotives left behind in the Netherlands, Nos. 7113 and 7119 were not repaired from war damage. The remaining locomotives were withdrawn from service in 1947 and 1948.

FactorynumberDate builtNFLS numberHSM numberSS numberNS numberWithdrawnNotes
137619011105171011949
137719012105271021947Withdrawn and scrapped due to war damage.
137819013105371031949
137919014105471041947Taken to Germany, after the locomotive returned it was scrapped due to war damage.
138019015105571051947Taken to Germany, after the locomotive returned it was scrapped due to war damage.
138119016105671061949
153319027105771071939
153419028105871081949Taken to Germany, after the locomotive returned it was repaired.
153919029105971091947Withdrawn and scrapped due to war damage.
1540190210106071101925
2139190753171111947
2140190753271121947
2141190753371131945Withdrawn and scrapped due to war damage.
2142190753471141925
2143190753571151948
2144190753671161936
2145190753771171947Taken to Germany, after the locomotive returned it was scrapped due to war damage.
2120190853871181947Taken to Germany, after the locomotive returned it was scrapped due to war damage.
2121190853971191945Withdrawn and scrapped due to war damage.
2122190854071201947Taken to Germany, after the locomotive returned it was scrapped due to war damage.
2123190854171211947
2124190854271221947Taken to Germany, after the locomotive returned it was scrapped due to war damage.
2125190854371231948Taken to Germany. Scrapped in Hagenow in 1951.
2126190854471241940On May 10, 1940, in Leeuwarden, run into the Potmarge to block the track for the advancing German troops.
2127190854571251948

Sources

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