View source for NS 1900

{{Infobox locomotive
| name = NS 1900
| image = HSM 425 Werkspoor.jpg
| powertype = [[Steam]]
| builder = [[Werkspoor]]
| builddate = 1907-1913
| totalproduction = 40
| whytetype = [[4-4-0]]
| uicclass = 2'B
| leadingdiameter = {{cvt|991|mm|ftin}}
| driverdiameter = {{cvt|2016|mm|ftin}}
| tenderdiameter = {{cvt|1105|mm|ftin}}
| over bufferbeams = {{cvt|16978|mm|ftin}} <br> 1913-1914: {{cvt|16951|mm|ftin}}
| height = {{cvt|4365|mm|ftin}}
| locoweight = {{cvt|52.2|MT|ST LT}}
| tenderweight = {{cvt|39.2|MT|ST LT}}
| fueltype = [[Coal]]
| fuelcap = {{cvt|4|MT|ST LT}}
| watercap = {{cvt|17|m3|impgal}}
| firearea = {{cvt|2.04|m2|sqft}}
| boilerpressure = {{cvt|10.5|bar|psi}} superheated
| tubearea = {{cvt|71|m2|sqft}}
| fireboxarea = {{cvt|10|m2|sqft}}
| superheaterarea = {{cvt|23|m2|sqft}}
| cylindercount = 2
| cylindersize = {{cvt|500|x|660|mm|in}}
| valvegear = [[Stephenson valve gear|Stephenson]]
| maxspeed = {{cvt|100|km/h|mph}}
| tractiveeffort = {{cvt|59.23|kN|lbf}}
| operator = SS, NS
| powerclass = HSM: PV<sup>1</sup>, NS: PO<sup>1</sup>
| fleetnumbers = HSM: 421-460, <br> NS: 1901-1940
| withdrawndate = 1946-1948
| disposition = All [[scrap]]ped
}}
The '''NS 1900''' was a series of express train steam locomotives of the [[Nederlandse Spoorwegen|Dutch Railways]] (NS) and its predecessor [[Hollandsche IJzeren Spoorweg-Maatschappij]] (HSM).<ref>NVBS: Op de Rails. J.J.K.: Iets over de geschiedenis van het materieel van de Nederlandsche Spoorwegen. 7-1940.</ref>
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 [[NS 1600 (steamlocomotive)|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.<ref>{{Cite book|last=Waldorp|first=H.|url=https://www.worldcat.org/oclc/63833327|title=Onze Nederlandse stoomlocomotieven in woord en beeld|date=1986|publisher=De Alk|isbn=90-6013-947-X|edition=7e, gew. dr|location=Almaar|oclc=63833327}}</ref>
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.
{| class="wikitable" style="float"
!Lot no.
!Built
!HSM numbers
!NS numbers
!Withdrawn
!notes
|-
|183-187
|1907
|421-425
|1901-1905
|1946-1948
|
|-
|227-229
|1908
|426-428
|1906-1908
|1946-1948
|NS 1906 Missing after [[World War II|world war II]]
|-
|230-233
|1909
|429-432
|1909-1912
|1946-1948
|
|-
|238-244
|1909
|433-439
|1913-1919
|1946-1947
|
|-
|245-247
|1910
|440-442
|1920-1922
|1946
|
|-
|266-270
|1911
|443-447
|1923-1927
|1946-1947
|
|-
|289-295
|1912
|448-454
|1928-1934
|1946-1948
|NS 1934 Missing after world war II
|-
|322-327
|1913
|455-460
|1935-1940
|1946-1947
|NS 1935 and 1937 Missing after world war II
|}
[[File:NS_1900_-_NS_1902.jpg|thumb|NS 1902 - HSM 422 (ca. 1910)]]
== Sources and references ==
<references />
* R.C. Statius Muller, A.J. Veenendaal jr., H. Waldorp: ''De Nederlandse stoomlocomotieven''. Uitg. De Alk, Alkmaar, 2005. {{ISBN|90-6013-262-9}}.
* J. van der Meer: ''De Hollandsche IJzeren Spoorweg-Maatschappij''. Uitg. Uquilair, 2009, {{ISBN|978-90-71513-68-8}}.
* J.J. Karskens: ''De Locomotieven van de Hollandsche IJzeren Spoorweg Maatschappij''. Uitg. J.H. Gottmer, Haarlem - Antwerpen, 1947.
* M.A. Asselberghs: ''Nederlands Spoorwegmuseum. Een wandeling langs de verzameling''. Uitg. Nederlands Spoorwegmuseum, Utrecht, 1987.
{{Navigation Dutch steam locomotives}}
[[Category:Steam locomotives of the Netherlands]]
[[Category:4-4-0 locomotives]]
[[Category:Werkspoor locomotives]]
[[Category:Hollandsche IJzeren Spoorweg-Maatschappij]]
[[Category:Railway locomotives introduced in 1907]]