“GWR Haigh Foundry locomotives”的意思、由来-开放百科全书

词条

GWR Haigh Foundry locomotives

释义

Names
References

{{Use dmy dates|date=February 2018}}{{Use British English|date=February 2018}}{{no footnotes|date=December 2014}}{{Infobox locomotive
|name = GWR Snake and Viper
South Devon Railway Exe and Teign
|powertype = Steam
|builder=Haigh Foundry
|builddate = 1838
|totalproduction = 2
|serialnumber = 25–26
|whytetype = 2-2-2
2-2-2T (after rebuild)
|gauge = {{track gauge|7ft0.25in|lk=on}}
|leadingdiameter = {{convert|3|ft|5|in|mm|0|abbr=on}}
|driverdiameter = {{convert|6|ft|4|in|mm|0|abbr=on}}
{{convert|6|ft|0|in|mm|0|abbr=on}} (after rebuild)
|trailingdiameter = {{convert|3|ft|5|in|mm|0|abbr=on}}
|wheelbase = {{convert|13|ft|0|in|m|2|abbr=on}}
|cylindersize = {{convert|14.75|x|18|in|mm|0|abbr=on}}
{{convert|13|x|18|in|mm|0|abbr=on}} (first rebuild)
{{convert|15|x|18|in|mm|0|abbr=on}} (second rebuild)
|operator = Great Western Railway
South Devon Railway
|numinclass = 2
|withdrawndate = 1868-1869
|disposition = Unknown, probably scrapped
}}

The first 19 locomotives ordered by Isambard Kingdom Brunel for the Great Western Railway included two unusual Haigh Foundry locomotives.

Snake and Viper were built at the Haigh Foundry in 1838 with {{convert|14.75|x|18|in|mm|0|adj=on}} cylinders and the driving wheels geared 2:3 in order to keep the cylinder stroke speed low while allowing high track speed, in line with Brunel's specifications. Within a couple of years they had been rebuilt with {{convert|13|x|18|in|mm|0|abbr=on}} and conventional drive. They were later converted to 2-2-2T tank locomotives, possibly when they were sent to work the South Devon Railway, and at some time fitted with {{convert|6|ft|0|in|mm|0|abbr=on}} driving wheels and {{convert|15|x|18|in|mm|0|abbr=on}} cylinders.

Names

Snake (Haigh Foundry 25; 1838–1869)

Between 1846 and 1851 it carried a different name, Exe, while working on the South Devon Railway, after the River Exe; it reverted to Snake when it returned to the Great Western Railway.

Viper (Haigh Foundry 26; 1838–1868)

Between 1846 and 1851 it carried a different name, Teign, while working on the South Devon Railway, after the River Teign; it reverted to Viper when it returned to the Great Western Railway.

References

{{RCTS-LocosGWR-2|page=B11}}
{{cite book | last = Waters | first = Laurence | title = The Great Western Broad Gauge | publisher = Ian Allan Publishing | year = 1999 | location = Hersham |isbn=0-7110-2634-3 }}

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