GWR 3600 Class
{{Use dmy dates|date=February 2018}}
{{Use British English|date=February 2018}}
{{more footnotes|date=July 2022}}
{{Infobox locomotive
| name = GWR 3600 class
| image =
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| powertype = Steam
| designer = William Dean
| builder = Swindon Works
| ordernumber = Lots 130, 134, 143
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| buildmodel =
| builddate = 1900–1903
| totalproduction = 31
| whytetype = 2-4-2T
| uicclass = 1′B1′
| gauge = {{track gauge|uksg|allk=on}}
| leadingdiameter = {{convert|3|ft|8|in|m|3|abbr=on}}
| driverdiameter = {{convert|5|ft|2|in|m|3|abbr=on}}
| trailingdiameter = {{convert|3|ft|8|in|m|3|abbr=on}}
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| fueltype = Coal
| fuelcap = {{convert|3|LT|t ST|1|abbr=on}}
| watercap = {{convert|1900|impgal|abbr=on}}
| sandcap =
| boiler = GWR Standard No. 3{{sfnb|Champ|2018|p=320}}
| boilerpressure = {{convert|200|lbf/in2|MPa|2|abbr=on}}
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| cylindercount = Two, inside
| cylindersize = {{convert|17|x|24|in|mm|0|abbr=on}}
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| tractiveeffort = {{convert|19020|lbf|kN|2|abbr=on}}
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| operator = Great Western Railway
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| withdrawndate = October 1930 – November 1934
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| disposition = All scrapped
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}}
The Great Western Railway (GWR) 3600 Class was a class of 2-4-2T side tank steam locomotive, designed by William Dean and built at Swindon in three lots in 1900-1903:
History
Dean had built an experimental 2-4-2T numbered 11, whose success led to the cancellation of another batch of 2-4-0 "Metro" Tanks and the construction of the 3600s in their place. The new 2-4-2Ts had {{convert|5|ft|2|in|3|abbr=on}} coupled wheels and {{convert|17|x|24|in|mm|0|abbr=on}} cylinders. The second batch were slightly longer than the prototype, resulting in greater tank capacity, and the third lot, delivered under Churchward, were slightly larger again, and had taper boilers. The class gained the nickname "Birdcage" due to their (for the GWR) unusually spacious cabs.
| class="wikitable" style="text-align:center"
|+ Table of orders and numbers{{sfnb|Allcock|Davies|le Fleming|Maskelyne|1968|pp=23, 29}} ! Year !! Quantity !! Lot No. !! Serial Nos. !! Locomotive numbers !! Notes | |||||
| 1900 | {{0}}1 | 130 | 1907 | 11 | align=left | renumbered 3600 in 1912 |
| 1902 | 20 | 134 | 1866–1885 | 3601–3620 | align=left | Serial numbers out of sequence |
| 1903 | 10 | 143 | 2013–2022 | 3621–3630 | align=left | |
Use
The 3600 class were fitted with steam reversing gear, steam brakes, and two steam-operated water pick-ups for forward and reverse working. This reflects their intended work as fast suburban engines. About half were employed on such duties in the Birmingham area. The rest worked in the London area, though later a few worked Chester-Birkenhead trains,{{Cite book
|title=Paddington to the Mersey: G.W.R's Forgotten Route from London to Birkenhead
|first1=R. Preston |last1=Hendry
|first2=R. Powell |last2=Hendry
|year=1992
|publisher=OPC Railprint
|isbn=086093442X
}}{{page needed|date=October 2020}} and some were allocated to South Wales sheds. They were essentially passenger train locomotives, and were eventually superseded by Collett's 2-6-2Ts. All were withdrawn and scrapped between 1930 and 1934.{{sfn|Tabor|1959|pp=F38-F41}}
References
{{Reflist}}
- {{RCTS-LocosGWR-1|year=1968}}
- {{Cite book|last=Champ|first=Jim |title=An Introduction to Great Western Locomotive Development |year=2018|publisher=Pen & Sword Transport |isbn=978-1-4738-7784-9|location=Barnsley |oclc=1029234106 |ol=26953051M }}
- {{cite book |last=Tabor |first=F.J. |editor-last=White |editor-first=D.E. |title=The Locomotives of the Great Western Railway, part six: Four-coupled Tank Engines |year=1959 |publisher=RCTS |location=Kenilworth}}
External links
- [http://www.greatwestern.org.uk/m_in_242.htm 3600 'Birdcage' tank class]
{{GWR Locomotives}}
Category:1′B1′ n2t locomotives
Category:Standard-gauge steam locomotives of Great Britain
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