LSWR 700 class

Infobox Locomotive
name = LSWR 700 class (as built)
powertype = Steam


caption=
designer = Dugald Drummond
builder = Dübs & Co.
serialnumber = 3510–3538
whytetype = 0-6-0
uicclass = Cn
cylindersize = 18½×26 in (470×660 mm)
driversize = convert|61|in|m|3|abbr=on
tubearea = convert|1068|sqft|m2|abbr=on
fireboxarea = convert|124|sqft|m2|abbr=on
firearea = convert|20.25|sqft|m2|abbr=on
boilerpressure = convert|175|psi|MPa|2|abbr=on|lk=on
tractiveeffort = convert|22487|lbf|kN|abbr=on
weight=convert|42.75|LT|t|abbr=on|lk=on
tenderc
convert|4|LT|t|abbr=on; water: convert|3500|impgal|l|abbr=on
numinclass= 30
nicknames = "Black Motor"
disposition = All scrappedInfobox Locomotive
name = LSWR 700 class (after superheating)
powertype = Steam
caption = Only details that changed are shown here
uicclass = Ch
cylindersize = 19×26 (483×660 mm)
tubearea = convert|860|sqft|m2|abbr=on
fireboxarea = convert|117|sqft|m2|abbr=on
superheatertype = Eastleigh (11); later all Maunsell
superheaterarea = Eastleigh: convert|167|sqft|m2|abbr=on; Maunsell convert|182|sqft|m2|abbr=on
boilerpressure = convert|180|psi|MPa|2|abbr=on
tractiveeffort = convert|23500|lbf|kN|abbr=on
weight = convert|46.70|LT|t|abbr=on

The London and South Western Railway 700 class was a class of 30 0-6-0 steam locomotive designed for freight work. The class was designed by Dugald Drummond in 1897 and built by Dübs and Company at that company's Queen's Park works at Polmadie, Glasgow.

Overview

The class was originally numbered 687–716 but the year after delivery numbers 702–716 were given new numbers vacated by engines that had been withdrawn. The locomotives gained the nickname 'Black Motor' early in their career. They were well designed and had few major modifications during the existence of the fleet – the exception being fitted with superheating from 1919 to 1929, which required the fitting of an extended smokebox. They shared many standard parts with Drummond's other designs (including sharing boilers with the M7 class).

Withdrawal

They 700s remained intact as a class through Southern Railway ownership from 1923 to 1947. The first to be withdrawn was No. 30688 in September 1957, with the second, No. 30352, following in June 1959 and then the 3rd, No. 30687, in September 1960. The final seven were all withdrawn by British Railways in December 1962.

Preservation

None was saved for preservation.

References

* [http://www.semgonline.com/steam/700class_01.html Southern e-group]
*cite book
author = Haresnape, Brian
coauthor = Peter Rowledge
title = Drummond Locomotives, A Pictorial History
publisher = Ian Allen Ltd
location = Shepperton, Surrey, UK
year = 1982
isbn = 0711012067