Editing GWR 4100 Class

{{Short description|Class of 84 British 4-4-0 locomotives}}
{{Use dmy dates|date=February 2018}}
{{Use British English|date=February 2018}}
{{Infobox locomotive
| name             = GWR 4100 class
| image            = 3373 Atbara.jpg
| alt              = 
| caption          = 3373 ''Atbara'' {{circa|1900–1902}}
| powertype        = Steam
| designer         = [[William Dean (engineer)|William Dean]]
| builder          = GWR [[Swindon Works]]
| ordernumber      = Lots 109, 125, 126, 176
| serialnumber     = 1592–1611, 1826–1865, 2330–2349
| buildmodel       = 
| builddate        = 1897–1908
| totalproduction  = 80
| rebuilder        = 
| rebuilddate      = 
| numberrebuilt    = 
| whytetype        = [[4-4-0]]
| uicclass         = 2′B n2
| driver           = <!-- e.g. 1st, 2nd  or 3rd coupled axle -->
| gauge            = {{track gauge|56.5in}}
| leadingdiameter  = 
| driverdiameter   = <!-- USA terminology -->
| coupleddiameter  = <!-- British terminology -->
| trailingdiameter = 
| tenderdiameter   = <!-- tender wheel diameter -->
| minimumcurve     = 
| wheelbase        = 
|  engine total    = 
|  leading         = 
|  drivers         = <!-- USA terminology -->
|  coupled         = <!-- British terminology -->
|  trailing        = 
|  tender total    = 
|  tendertruck     = <!-- USA terminology -->
|  tenderbogie     = <!-- British terminology -->
| pivotcentres     = <!-- Garratts, diesels and electrics -->
| wheelspacing     = <!-- coupled wheels with asymmetrical wheel spacing --> 
| length           = 
|  over couplers   = 
|  over bufferbeams= 
| width            = 
| height           = 
| frametype        = 
| axleload         = 
|  leadingbogie/pony= <!-- load on leading bogie or pony wheel -->
|  coupled all     = <!-- when the load on all coupled wheels are the same -->
|  coupled 1       = <!-- load on 1st coupled wheel -->
|  coupled 2       = <!-- load on 2nd coupled wheel -->
|  tenderbogieload = <!-- load per tender bogie, use "Truck 1:<br/>Bogie 2:" if different -->
|  tenderaxle      = <!-- use "Axle 1:", etc with "<br/>" for line breaks -->
| weightondrivers  = 
| locoweight       = 
| tenderweight     = 
| locotenderweight = 
| tendertype       = 
| fueltype         = 
| fuelcap          = 
| watercap         = 
| tendercap        = 
| sandcap          = 
| fireboxtype      = <!-- Round-top, Belpaire, combustion chamber, etc. -->
|  firearea        = 
| boiler           = <!-- Watson Standard no. x, etc -->
|  boilertype      = <!-- Domeless, etc -->
|  pitch           = <!-- height of boiler centreline above the railhead -->
|  diameterinside  = 
|  lengthinside    = <!-- distance between tube plates -->
|  smalltubediameter= <!-- number of boiler tubes and their outside diameter -->
|  largetubediameter= <!-- number of larger tubes (flues), if any, and their outside diameter -->
| boilerpressure   = 
| safetyvalvetype  = <!-- Salter spring balance, Ramsbottom, Pop, etc. -->
| feedwaterheater  = 
| totalsurface     = 
|  tubearea        = 
|  archarea        = 
|  fluearea        = 
|  tubesandflues   = 
|  fireboxarea     = 
| superheatertype  = 
|  superheaterarea = 
| cylindercount    = Two
| cylindersize     = 
| valvegear        = 
| valvetype        = 
| valvetravel      = 
| valvelap         = 
| valvelead        = 
| transmission     = 
| trainheating     = 
| locobrakes       = 
| locobrakeforce   = 
| trainbrakes      = 
| safety           = 
| coupling         = 
| maxspeed         = 
| poweroutput      = 
| tractiveeffort   = 
| factorofadhesion = 
| operator         = [[Great Western Railway]]
| operatorclass    = 
| powerclass       = 
| numinclass       = 
| fleetnumbers     = {{ubl|''New:'' 3291–3311, 3373–3412, 4101–4120|''from 1912:'' 4100–4172}}
| officialname     = 
| nicknames        = 
| axleloadclass    = 
| locale           = 
| deliverydate     = 
| firstrundate     = 
| lastrundate      = 
| retiredate       = 
| withdrawndate    = 
| preservedunits   = 
| restoredate      = 
| scrapdate        = 
| currentowner     = 
| disposition      = All scrapped
| notes            = 
}}

The '''GWR 4100 Class''' was a class of steam [[locomotive]]s in the [[Great Western Railway]] (GWR) of the [[United Kingdom]].

The '''Badminton''' class express passenger [[4-4-0]] steam [[locomotive]]s were introduced in 1897 as a development from the earlier [[GWR 3252 Class|Duke class]]. The name Badminton was chosen after the [[Duke of Beaufort]]'s [[Badminton House|Badminton estate]], through which the GWR was building [[South Wales Main Line|a new line to South Wales]] at the time.<ref name="Davies1993">{{harvnb |Davies |1993 |p=107}}</ref>

Further modifications to the design resulted in the '''Atbara''' Class entering service in 1900, the names for these locomotives generally being taken from contemporary military engagements or senior army commanders. Later engines were named after cities of the British Empire.

The final batch of locomotives were named after varieties of garden plant and in consequence were known as the '''Flower''' Class.

These three types were later standardised and treated as a single class, so are listed together here. Four other prototype 4-4-0s, originally built in 1894 as the '''Armstrong''' Class, were also later rebuilt as Badmintons (see below).

This class were subject to the [[Locomotives of the Great Western Railway#1912 Renumbering|1912 renumbering]] of GWR 4-4-0 locomotives, which saw the Bulldog Class gathered together in the series 3300–3455, and other types renumbered out of that series. This class took numbers 4100–4172 (of which numbers 4101–4120 had previously been used by Flower Class locomotives).

==Badminton class==

The first member of the class, No. 3292, was completed in December 1897 with a [[Steam dome|domed]] parallel [[boiler]], a raised [[Belpaire firebox]] and an extended, built-up [[smokebox]] similar to that used on the Duke Class.<ref name=Hol74>{{harvnb |Holcroft |1971 |p=74}}</ref> The outside frames were curved over each driving wheel axle.<ref name=OSNa32>{{harvnb |Nock |1977 |p=32}}</ref> It was named ''Badminton'' in April 1898.<ref name=OSNa33>{{harvnb |Nock |1977 |p=33}}</ref> A batch of eleven locomotives, Nos. 3293 to 3303, were completed between April and July 1898, with a further batch of eight, Nos. 3304 to 3311, between September 1898 and January 1899.<ref name=OSNa34>{{harvnb |Nock |1977 |p=34}}</ref> The class were the first locomotives on the GWR to be fitted with copper Belpaire fireboxes.<ref name=Hol68>{{harvnb |Holcroft |1971 |p=68}}</ref> The penultimate example, No. 3310 ''Waterford'', was fitted with a domeless parallel boiler, a steel Belpaire firebox, and an enlarged cab.<ref name=OSNa34/><ref name=Hol68/>

The class were fitted with a steam chest and [[slide valve]]s located beneath the [[Cylinder (locomotive)|cylinders]]. The valves were driven by [[Stephenson valve gear]].<ref name=Hol67>{{harvnb |Holcroft |1971 |p=67}}</ref> This inverted arrangement of slide valves and steam chest, originally introduced by [[William Stroudley]] of the [[London, Brighton and South Coast Railway|LB&SCR]], allowed the valves to drop away from the cylinder's steam port faces when the regulator was closed, thus reducing wear.<ref name=Hol62>{{harvnb |Holcroft |1971 |p=62}}</ref> Because the steam chest was below the cylinders, and not between them, the latter could have an increased diameter. The centre line of the cylinders was inclined at an angle of 6° to the centre line of the valves, each centre line being aligned with the driving centre. This arrangement allowed the valve rods to be driven directly from the expansion link.<ref name=Hol62/><ref name=OSNa10>{{harvnb |Nock |1977 |p=10}}</ref><ref name=OSNa46>{{harvnb |Nock |1977 |p=46}}</ref> First used on the Armstrong and [[GWR 3031 Class|3031]] Classes, this arrangement of cylinders, valves and valve gear was subsequently used on all GWR outside framed 4-4-0s, with the slide valves being eventually replaced by [[Piston valve (steam engine)|piston valves]].<ref name=OSNa27>{{harvnb |Nock |1977 |p=27}}</ref>

The [[crankpin]]s for the [[coupling rod]]s were placed in line with the corresponding inside crankpins for the [[connecting rod]]s.<ref name=OSNa34/><ref name=Hol68/> This arrangement was also developed by Stroudley, who claimed that the motion of the inside cranks was smoothly transferred to the coupling rods, as happens in an outside-cylindered engine, where the connecting rod acts directly on a crankpin shared with the coupling rod. According to Stroudley, the axleboxes, bearing surfaces, [[Steam locomotive#Chassis|hornblocks]] and coupling rods of locomotives with outside cylinders had a service life twice as long as those on inside-cylindered examples.<ref name=OSNa13>{{harvnb |Nock |1977 |p=13}}</ref> However, by aligning the two cranks together, heavy balancing weights were required on the driving wheels, at 180° to the outside crank, to counteract the combined mass of the cranks and rods.<ref name=OSNa34/> The Badmintons had massive crescent-shaped balancing weights, which made the unmounted pairs of wheels difficult to handle in the workshop.<ref name=Hol68/>

{| class="wikitable"
!colspan=2 align=center|Numbers
!colspan=2|Names
|-
!width="90" align=center|First
!width="90" align=center|Second (1912)
!width="110" align=center|First
!width="110" align=center|Second
|-
|align=center|3292
|align=center|4100
|[[Badminton House|Badminton]]
|-
|align=center|3293
|align=center|4101
|[[William Barrington, 6th Viscount Barrington|Barrington]]
|-
|align=center|3294
|align=center|4102
|[[Blenheim Palace|Blenheim]]
|-
|align=center|3295
|align=center|4103
|[[Frederick Ponsonby, 6th Earl of Bessborough|Bessborough]]
|-
|align=center|3296
|align=center|4104
|[[Cambria]]
|-
|align=center|3297
|align=center|4105
|[[Earl Cawdor]]
|-
|align=center|3298
|align=center|4106
|[[Grosvenor (surname)|Grosvenor]]
|-
|align=center|3299
|align=center|4107
|[[Hubbard (locomotive)|Hubbard]]
|[[Alexander Hubbard]]
|-
|align=center|3300
|align=center|4108
|[[Henry Percy (Hotspur)|Hotspur]]
|-
|align=center|3301
|align=center|4109
|[[Monarch]]
|-
|align=center|3302
|align=center|4110
|[[Mortimer]]
|[[Charles Mortimer]]
|-
|align=center|3303
|align=center|4111
|[[Marlborough, Wiltshire|Marlborough]]
|-
|align=center|3304
|align=center|4112
|[[Oxford]]
|''Name removed in 1927''
|-
|align=center|3305
|align=center|4113
|[[Samson]]
|-
|align=center|3306
|align=center|4114
|[[Shelburne (locomotive)|Shelburne]]
|-
|align=center|3307
|align=center|4115
|[[Shrewsbury]]
|''Name removed in 1927''
|-
|align=center|3308
|align=center|4116
|[[Savernake, Wiltshire|Savernake]]
|-
|align=center|3309
|align=center|4117
|[[Shakespeare]]
|-
|align=center|3310
|align=center|4118
|[[Waterford]]
|-
|align=center|3311
|align=center|4119
|[[Wynnstay]]
|-
|}

One locomotive of the Badminton Class was rebuilt with an experimental boiler. With the impending opening of the direct [[Reading–Taunton line]] which was of more undulating nature than the route via Bristol, there was a need to ensure that the most appropriate locomotives were provided. [[George Jackson Churchward|Churchward's]] Chief Assistant, F.G. Wright, designed a large boiler with a very deep firebox, which was fitted to No. 3297 ''Earl Cawdor'' in July 1903.<ref name=OSNa62-63>{{harvnb |Nock |1977 |pp=62–63}}</ref> The boiler was designed to hold a large volume of hot water, forming a reservoir to assist the locomotive running along an undulating line.<ref name=OSNa62>{{harvnb |Nock |1977 |p=62}}</ref> It also provided a steam space of {{convert|85.13|cuft|m3|abbr=on}} compared to the {{convert|76.2|cuft|m3|abbr=on}} of the Standard No. 4 boiler, the larger of the two standard boiler models fitted to the 4-4-0s.<ref name=Hol82>{{harvnb |Holcroft |1971 |p=82}}</ref><ref name=OSNa63>{{harvnb |Nock |1977 |p=63}}</ref> This increase in volume was intended to provide a reservoir of steam.<ref name="OSNa63"/> The firebox was set deep between the coupled axles, with a horizontal grate.<ref name=OSNa62/> The intent was to allow a thick fire to be built up, increasing the area of the firebox in contact with the fire, and decreasing the temperature gradient along the firebox plates, thus reducing the risk of broken firebox stays.<ref name=OSNa62-63/> The boiler was pressed to {{convert|210|lbf/in2|MPa|abbr=on}}.<ref name=OSNa63/> No. 3297 was also fitted with a large cab with two side windows, reminiscent of [[North Eastern Railway (United Kingdom)|North Eastern]] practice.<ref name=OSNa63/><ref name=RCTSGWR7>{{harvnb |le Fleming |1954 |p=G30}}</ref> The locomotive was regularly rostered on the most demanding trains, but it soon became apparent that it was not up to the work demanded and it was relegated to secondary duties. In October 1906 the boiler was removed and replaced by a Standard No. 4 boiler, the North Eastern style side-window cab having been replaced by a Churchward type in November 1904.<ref name=RCTSGWR7/>

==Atbara class==

No. 3373 ''Atbara'' was built in April 1900, the first of a class of forty locomotives.<ref name=OSNb88>{{harvnb |Nock |1978 |p=88}}</ref> Instead of the curved outside frames of the Badmintons, this class had straight-topped frames, which became the standard pattern for all subsequent outside-framed 4-4-0s.<ref name=OSNa43>{{harvnb |Nock |1977 |p=43}}</ref> These straight frames were less prone to fracturing, because of the greater depth of plate between the coupled wheels.<ref name=Hol68/> The Atbaras retained the Stroudley crank layout, cylinders, valves and valve gear of the Badmintons, but differed in the boiler, which was a parallel domeless Standard No. 2 type.<ref name=OSNa45>{{harvnb |Nock |1977 |p=45}}</ref><ref name=OSNa94>{{harvnb |Nock |1977 |p=94}}</ref> No. 3405 ''Mauritius'' was reboilered in September 1902 with a tapered boiler, a prototype for the Standard No. 4 type.<ref name=OSNa58>{{harvnb |Nock |1977 |p=58}}</ref> It was the first GWR 4-4-0 to be fitted with a tapered (or coned) boiler.<ref name=OSNa57>{{harvnb |Nock |1977 |p=57}}</ref> Following this, another nine Atbaras, nos. 3400 to 3404 and 3406 to 3409, were rebuilt with No. 4 boilers between February 1907 and February 1909. The ten were added to the [[GWR 3700 Class|City Class]].<ref name="OSNb88"/><ref name=OSNb39>{{harvnb |Nock |1978 |p=39}}</ref> No. 3382 ''Mafeking'' was heavily damaged in an accident that occurred just after midnight on 25 June 1911 at {{stnlnk|Henley-in-Arden}}. Adjudged unrepairable, it was withdrawn in September 1911, so was not included in the 1912 renumbering.<ref name=Ferris>{{cite web|last=Ferris|first=Robert|title=Henley in Arden accident|url=http://www.warwickshirerailways.com/gwr/gwrha759.htm|publisher=Warwickshire Railways|access-date=12 October 2012}}</ref> The remaining Atbaras were withdrawn between April 1927 and May 1931.<ref name=OSNb88/>
[[File:3373 Atbara in Royal Sovereign livery.png|thumb|Atbara Class locomotive no. 3373, in Royal Sovereign livery, on February 2, 1901.]]
{| class=wikitable
!colspan=2 align=center|Numbers
!colspan=3|Names
|-
!width="90" align=center|First
!width="90" align=center|Second (1912)
!width="110" align=center|First
!width="110" align=center|Second
!width="110" align=center|Third
|-
|align=center|3373
|align=center|4120
|[[Battle of Atbara|Atbara]]
|-
|align=center|3374
|align=center|4121
|[[Robert Baden-Powell, 1st Baron Baden-Powell|Baden Powell]]
|-
|align=center|3375
|align=center|4122
|[[Conqueror (locomotive)|Conqueror]]
|[[William Edgcumbe, 4th Earl of Mount Edgcumbe|Edgcumbe]]
|[[William Edgcumbe, 4th Earl of Mount Edgcumbe|Colonel Edgcumbe]]
|-
|align=center|3376
|align=center|4123
|[[Lord Herschell|Herschell]]
|''Name removed in 1914''
|-
|align=center|3377
|align=center|4124
|[[Horatio Kitchener|Kitchener]]
|-
|align=center|3378
|align=center|4125
|[[Khartoum]]
|-
|align=center|3379
|align=center|4126
|[[Kimberley, Northern Cape|Kimberley]] <!-- Boer War, therefore Kimberley, South Africa -->
|-
|align=center|3380
|align=center|4127
|[[Siege of Ladysmith|Ladysmith]]
|-
|align=center|3381
|align=center|4128
|[[RFA Maine (1887)|Maine]]
|-
|align=center|3382
|align=center|Withdrawn
|[[Siege of Mafeking|Mafeking]]
|-
|align=center|3383
|align=center|4129
|[[Robert Kekewich|Kekewich]]
|-
|align=center|3384
|align=center|4130
|[[Battle of Omdurman|Omdurman]]
|-
|align=center|3385
|align=center|4131
|[[HMS Powerful (1895)|Powerful]]
|-
|align=center|3386
|align=center|4132
|[[Pembroke, Pembrokeshire|Pembroke]]
|''Name removed in 1930''
|-
|align=center|3387
|align=center|4133
|[[Frederick Roberts, 1st Earl Roberts|Roberts]]
|-
|align=center|3388
|align=center|4134
|[[Redvers Buller|Sir Redvers]]
|-
|align=center|3389
|align=center|4135
|[[Daniel Gooch|Sir Daniel]]
|[[Pretoria]]
|-
|align=center|3390
|align=center|4136
|[[HMS Terrible (1895)|Terrible]]
|-
|align=center|3391
|align=center|4137
|[[Garnet Wolseley, 1st Viscount Wolseley|Wolseley]]
|-
|align=center|3392
|align=center|4138
|[[George White (British Army officer)|White]]
|-
|align=center|3393
|align=center|4139
|[[Auckland]]
|-
|align=center|3394
|align=center|4140
|[[Adelaide]]
|''Name removed in 1910''
|-
|align=center|3395
|align=center|4141
|[[Aden]]
|-
|align=center|3396
|align=center|4142
|[[Brisbane]]
|-
|align=center|3397
|align=center|4143
|[[Cape Town]]
|-
|align=center|3398
|align=center|4144
|[[Colombo]]
|-
|align=center|3399
|align=center|4145
|[[Dunedin]]
|-
|align=center|3400
|align=center|[[GWR 3700 Class|City]] 3700
|[[Durban]]
|-
|align=center|3401
|align=center|[[GWR 3700 Class|City]] 3701
|[[Gibraltar]]
|-
|align=center|3402
|align=center|[[GWR 3700 Class|City]] 3702
|[[City of Halifax|Halifax]]
|-
|align=center|3403
|align=center|[[GWR 3700 Class|City]] 3703
|[[Hobart]]
|-
|align=center|3404
|align=center|[[GWR 3700 Class|City]] 3704
|[[Lyttelton, New Zealand|Lyttelton]]
|-
|align=center|3405
|align=center|[[GWR 3700 Class|City]] 3705
|[[Mauritius]]
|-
|align=center|3406
|align=center|[[GWR 3700 Class|City]] 3706
|[[Melbourne]]
|-
|align=center|3407
|align=center|[[GWR 3700 Class|City]] 3707
|[[Malta]]
|-
|align=center|3408
|align=center|[[GWR 3700 Class|City]] 3708
|[[Killarney]]
|-
|align=center|3409
|align=center|[[GWR 3700 Class|City]] 3709
|[[Quebec]]
|-
|align=center|3410
|align=center|4146
|[[Sydney]]
|-
|align=center|3411
|align=center|4147
|[[St John's, Newfoundland|St. Johns]]
|-
|align=center|3412
|align=center|4148
|[[Singapore]]
|-
|}

==Flower class==
<!-- [[Polyanthus]] has a link to this section -->
The Flower Class were fitted with deeper outside frames than the Atbaras, and a new design of bogie developed from the type fitted to the French [[Alfred de Glehn|de Glehn]] [[GWR 102 La France|Atlantics]].<ref name=OSNa81>{{harvnb |Nock |1977 |p=81}}</ref> Twenty of the class were built between May and July 1908. Three were withdrawn in July 1927, with the last withdrawal, no. 4150 ''Begonia'', going in April 1931.<ref name=OSNb89>{{harvnb |Nock |1978 |p=89}}</ref>
{| class=wikitable
!colspan=2 align=center|Numbers
!rowspan=2 width="110"|Name
|-
!width="90" align=center|First
!width="90" align=center|Second (1912)
|-
|align=center|4101
|align=center|4149
|[[Primula auricula|Auricula]]
|-
|align=center|4102
|align=center|4150
|[[Begonia]]
|-
|align=center|4103
|align=center|4151
|[[Calceolaria]]
|-
|align=center|4104
|align=center|4152
|[[Calendula]]
|-
|align=center|4105
|align=center|4153
|[[Camellia]]
|-
|align=center|4106
|align=center|4154
|[[Campanula]]
|-
|align=center|4107
|align=center|4155
|[[Cineraria]]
|-
|align=center|4108
|align=center|4156
|[[Gardenia]]
|-
|align=center|4109
|align=center|4157
|[[Lobelia]]
|-
|align=center|4110
|align=center|4158
|[[Petunia]]
|-
|align=center|4111
|align=center|4159
|[[Anemone]]
|-
|align=center|4112
|align=center|4160
|[[Carnation]]
|-
|align=center|4113
|align=center|4161
|[[Hyacinth (plant)|Hyacinth]]
|-
|align=center|4114
|align=center|4162
|[[Leucanthemum vulgare|Marguerite]]
|-
|align=center|4115
|align=center|4163
|[[Tagetes|Marigold]]
|-
|align=center|4116
|align=center|4164
|[[Mignonette (Reseda)|Mignonette]]
|-
|align=center|4117
|align=center|4165
|[[Narcissus (genus)|Narcissus]]
|-
|align=center|4118
|align=center|4166
|[[Primula#Garden hybrids and cultivars|Polyanthus]]
|-
|align=center|4119
|align=center|4167
|[[Primula vulgaris|Primrose]]
|-
|align=center|4120
|align=center|4168
|[[Stephanotis]]
|}

==Prototype 4-4-0 locomotives==

The [[GWR 7 (Armstrong) Class|Armstrong Class]] were a group of four locomotives designed by [[William Dean (engineer)|William Dean]] and built in 1894 with {{convert|7|ft|1.5|in|m|3|abbr=on}} driving wheels.<ref name=OSNa12>{{harvnb |Nock |1977 |p=12}}</ref> In April 1915 no. 16 ''Brunel'' was rebuilt with {{convert|6|ft|8.5|in|m|3|abbr=on}} wheels and piston valves, having already been fitted with a Standard No.2 boiler. It was renumbered 4169 as a member of the Flower Class.<ref name=OSNb60>{{harvnb |Nock |1978 |p=60}}</ref> No. 14 ''Charles Saunders'' was converted in May 1917, and the remaining two were dealt with in February 1923.<ref name=LeF27>{{harvnb |le Fleming |1954 |p=G27-G29}}</ref>

{| class=wikitable
!colspan=2 align=center|Numbers
!rowspan=2|Date<br />Renumbered
!colspan=2 align=center|Names
!rowspan=2|Date<br />Withdrawn
|-
!width="90" align=center|First
!width="90" align=center|Second
!width="110" align=center|First
!width="110" align=center|Second
|-
|align=center|16
|align=center|4169
|align=center|April 1915
|colspan=2|[[Isambard Kingdom Brunel|Brunel]]
|align=center|July 1930
|-
|align=center|14
|align=center|4170
|align=center|May 1917
|colspan=2|Charles Saunders
|align=center|August 1928
|-
|align=center|7
|align=center|4171
|align=center|February 1923
|Charles Saunders
|[[George Armstrong (engineer)|Armstrong]]
|align=center|September 1928
|-
|align=center|8
|align=center|4172
|align=center|February 1923
|colspan=2|[[Daniel Gooch|Gooch]]
|align=center|April 1929
|-
|}

==References==
{{reflist|colwidth=30em}}

==Bibliography==
*{{cite book |last=Davies |first=Ken |title=The Locomotives of the Great Western Railway, part fourteen: Names and their Origins - Railmotor Services - War Service - The Complete Preservation Story |date=April 1993 |publisher=[[Railway Correspondence and Travel Society|RCTS]] |location=Lincoln |isbn=0-901115-75-4 }}
*{{cite book |last=le Fleming |first=H.M. |title=The Locomotives of the Great Western Railway, part seven: Dean's Larger Tender Engines |date=October 1954 |publisher=[[Railway Correspondence and Travel Society]] |editor-last=White |editor-first=D.E. |location=Kenilworth |isbn=0-901115-18-5 }}
*{{cite book
  |first=Harold |last=Holcroft
  |year=1971
  |title=An Outline Of Great Western Locomotive Practice 1837-1947
  |location=Shepperton, Middlesex
  |publisher=Ian Allan
  |ISBN=0-7110-0228-2
  }}
*{{cite book
  |first=O.S. |last=Nock
  |year=1977
  |title=Standard Gauge Great Western 4-4-0s Part 1 Inside Cylinder Classes 1894-1910
  |location=Newton Abbot
  |publisher=David & Charles
  |ISBN=0-7153-7411-7
  }}
*{{cite book
  |first=O.S. |last=Nock
  |year=1978
  |title=Standard Gauge Great Western 4-4-0s Part 2 Counties to the Close 1904-1961
  |location=Newton Abbot
  |publisher=David & Charles
  |ISBN=0-7153-7684-5
  }}
*''GWR Engines Names, Numbers Types & Classes''. Originally published by the Great Western Railway and Great Western Railway Magazine 1911 and 1928. Reprinted: David & Charles, Newton Abbot, Devon. 1971. {{ISBN|0-7153-5367-5}}

==External links==
*[http://www.greatwestern.org.uk/m_in_440_atbara.htm Atbara Class]
{{GWR Locomotives}}

[[Category:Great Western Railway locomotives|4100]]
[[Category:4-4-0 locomotives]]
[[Category:Railway locomotives introduced in 1894]]<!-- Armstrong -->
[[Category:Railway locomotives introduced in 1897]]<!-- Badminton -->
[[Category:Railway locomotives introduced in 1900]]<!-- Atbara -->
[[Category:Railway locomotives introduced in 1908]]<!-- Flower -->
[[Category:Standard-gauge steam locomotives of Great Britain]]
[[Category:Scrapped locomotives]]
[[Category:Passenger locomotives]]
[[Category:2′B n2 locomotives]]