View source for PPR 26 Tonner 0-6-0ST

{{Short description|Type of steam locomotive}}
{{Use dmy dates|date=June 2024}}
{{Use South African English|date=August 2013}}
{{Infobox locomotive
| name             = PPR 26 Tonner 0-6-0ST<br>NZASM 26 Tonner 0-6-0ST<br>IMR 0-6-0ST 1896<br>CSAR 0-6-0ST 1896<br>South African 0-6-0ST 1896
| image            = PPR 26 Tonner 0-6-0ST Pietersburg b.jpg
| alt              =
| caption          = Pretoria-Pietersburg Railway's ''Pietersburg'', c. 1940
| powertype        = Steam
| designer         = [[Hawthorn Leslie and Company|Hawthorn, Leslie and Company]]
| builder          = Hawthorn, Leslie and Company
| ordernumber      =
| serialnumber     = 2346, 2369, 2370
| buildmodel       =
| builddate        = 1896–1897
| totalproduction  = 3
| rebuilder        =
| rebuilddate      =
| numberrebuilt    =
| whytetype        = {{whyte|0-6-0|ST}}
| uicclass         = Cn2t
| driver           = 2nd coupled axle
| gauge            = {{Track gauge|Cape|allk=on}}
| leadingdiameter  =
| coupleddiameter  = {{convert|42|in|mm|0|abbr=on}}
| trailingdiameter =
| tenderdiameter   =
| minimumcurve     =
| wheelbase        = {{convert|10|ft|5+1/2|in|mm|0|abbr=on}}
| engine total     =
| leading          =
| coupled          =
| trailing         =
| tender total     =
| tenderbogie      =
| wheelspacing     = '''1-2:''' {{convert|5|ft|5|in|mm|0|abbr=on}}<br>'''2-3:''' {{convert|5|ft|1/2|in|mm|0|abbr=on}}
| length           =
| over couplers    = {{convert|25|ft|1/2|in|mm|0|abbr=on}}
| over bufferbeams =
| pivotcentres     =
| width            =
| height           = {{convert|11|ft|1+3/4|in|mm|0|abbr=on}}
| frametype        = [[Locomotive frame#Plate frames|Plate]]
| axleload         = {{convert|9|lt|6|lcwt|kg|sigfig=4|abbr=on}}
| leadingbogie/pony=
| coupled 1        = {{convert|8|lt|7|lcwt|kg|sigfig=4|abbr=on}}
| coupled 2        = {{convert|9|lt|6|lcwt|kg|sigfig=4|abbr=on}}
| coupled 3        = {{convert|8|lt|7|lcwt|kg|sigfig=4|abbr=on}}
| coupled 4        =
| coupled 5        =
| coupled 6        =
| coupled 7        =
| coupled 8        =
| trail bogie/pony =
| tenderbogieload  =
| weightondrivers  = {{convert|26|lt|kg|sigfig=4|abbr=on}}
| locoweight       = {{convert|26|lt|kg|sigfig=4|abbr=on}}
| tenderweight     =
| locotenderweight =
| tendertype       =
| fueltype         = Coal
| fuelcap          = {{convert|1|lt|10|lcwt|t|1|abbr=on}}
| watercap         = {{convert|620|impgal|L|sigfig=3|abbr=on}}
| tendercap        =
| sandcap          =
| fireboxtype      = Round-top
| firearea         = {{convert|8.3|sqft|m2|abbr=on}}
| boiler           =
| pitch            = {{convert|5|ft|10|in|mm|0|abbr=on}}
| boilertype       =
| diameterinside   = {{convert|3|ft|4|in|mm|0|abbr=on}}
| lengthinside     = {{convert|8|ft|10+5/16|in|mm|0|abbr=on}}
| smalltubediameter= '''130:''' {{convert|1+3/4|in|mm|0|abbr=on}}
| largetubediameter=
| boilerpressure   = {{convert|140|psi|kPa|0|abbr=on}}
| safetyvalvetype  =
| feedwaterheater  =
| totalsurface     = {{convert|576.6|sqft|m2|3|abbr=on}}
| tubearea         = {{convert|527.9|sqft|m2|abbr=on}}
| fluearea         =
| tubesandflues    =
| fireboxarea      = {{convert|48.7|sqft|m2|abbr=on}}
| superheatertype  =
| superheaterarea  =
| cylindercount    = Two
| cylindersize     = {{convert|14|in|mm|0|abbr=on}} bore<br>{{convert|20|in|mm|0|abbr=on}} stroke
| frontcylindersize=
| rearcylindersize =
| hpcylindersize   =
| lpcylindersize   =
| valvegear        = [[Stephenson valve gear|Stephenson]]
| valvetype        = [[Slide valve|Slide]]
| valvetravel      =
| valvelap         =
| valvelead        =
| transmission     =
| trainheating     =
| locobrakes       =
| trainbrakes      =
| safety           =
| coupling         = [[Railway coupling#Johnston coupler|Johnston link-and-pin]]
| maxspeed         =
| poweroutput      =
| tractiveeffort   = {{convert|9800|lbf|kN|abbr=on}} @ 75%
| factorofadhesion =
| locobrakeforce   =
| operator         = Pretoria-Pietersburg Railway<br>NZASM<br>Imperial Military Railways<br>Central South African Railways<br>South African Railways
| operatorclass    = PPR 26 Tonner
| powerclass       =
| numinclass       = 3
| fleetnumbers     =
| officialname     = ''Pretoria'', ''Pietersburg'' & ''Nylstroom''
| nicknames        =
| axleloadclass    =
| locale           =
| deliverydate     = 1896–1897
| firstrundate     = 1896
| lastrundate      =
| withdrawndate    =
| preservedunits   =
| restoredate      =
| scrapdate        =
| currentowner     =
| disposition      =
| notes            = For lack of a classification, these locomotives are referred to as {{nowrap|26 Tonners}}, since the NZASM, who took possession of the PPR, classified its own locomotives according to their weight
}}
The '''Pretoria-Pietersburg Railway 26 Tonner 0-6-0ST''' of 1896 was a South African steam locomotive from the pre-[[Union of South Africa|Union]] era in [[Transvaal Republic|Transvaal]].
In 1896 and 1897, the Pretoria-Pietersburg Railway in the ''[[South African Republic|Zuid-Afrikaansche Republiek]]'' placed three {{nowrap|26 Tonner}} {{whyte|0-6-0|ST}} locomotives in service. These locomotives were not classified and, since all three were named, they were referred to by name.<ref name="Holland 1">{{Holland-Vol 1|pages=118–119}}</ref><ref name="SAR&H Dec 1944">Espitalier, T.J.; Day, W.A.J. (1944). ''The Locomotive in South Africa – A Brief History of Railway Development. Chapter V – Other Transvaal and O.F.S. Railways. South African Railways and Harbours Magazine'', December 1944. pp. 925-928.</ref>
==The Pretoria-Pietersburg Railway==
The Pretoria-Pietersburg Railway Company (PPR), incorporated in London on 13 May 1896 with a capital of £500,000, constructed a railway which operated northward from [[Pretoria West]] via [[Bela-Bela|Warmbad]] and [[Nylstroom]] to [[Pietersburg]]. The {{convert|176|mi|km|adj=mid|long|abbr=off}} line was constructed under a concession granted by the government of the ''Zuid-Afrikaansche Republiek'' (ZAR) to Hendrik Jacobus Schoeman on 30 October 1895. Construction commenced in 1897 and the first {{convert|80|mi|km|abbr=off}} to Nylstroom was opened to traffic on 1 July 1898. The remaining {{convert|96|mi|km|abbr=off}} to Pietersburg was completed on 31 May 1899.<ref name="Holland 1"/><ref name="SAR&H Dec 1944"/>
On 1 May 1899, the southern terminus of the PPR at Pretoria West was connected to Pretoria station of the NZASM by a link line, constructed at the cost of the PPR. Mr. G. Mayo was appointed as the General Manager of the PPR, and the official opening of the whole line took place on 21 May 1899.<ref name="SAR&H Dec 1944"/>
==Manufacturer==
The first locomotives of the PPR were three {{nowrap|26 Tonner}} {{whyte|0-6-0|ST}} engines which were built by [[Hawthorn Leslie and Company|Hawthorn, Leslie and Company]], one in 1896 and the other two in 1897. They were employed as construction locomotives while the line was being built and were not classified or numbered, but named ''Pretoria'', ''Pietersburg'' and ''Nylstroom''.<ref name="Holland 1"/><ref name="SAR&H Dec 1944"/>
==Characteristics==
The engine's cylinders were inclined and arranged outside the {{convert|7/8|in|mm|0|abbr=off}} thick [[Locomotive frame#Plate frames|plate frames]]. The steam chests were arranged between the frames, with the [[slide valve]]s being actuated by [[Stephenson valve gear]] through rocker shafts.<ref name="SAR&H Dec 1944"/>
==Service==
===NZASM===
[[File:PPR 26 Tonner 0-6-0ST.jpg|thumb|left]]
As a result of the outbreak of the [[Second Boer War]] in 1899 and since the PPR was owned by a British registered company, the railway and its rolling stock were seized by the ZAR government in October 1899, only five months after the railway was completed to Pietersburg. The railway was then worked briefly by the ''[[Netherlands-South African Railway Company|Neder&shy;landsche-Zuid-Afrikaansche Spoor&shy;weg-Maatschappij]]'' (NZASM), until that railway was itself seized by the invading British military forces towards the end of the same year.<ref name="Holland 1"/><ref name="SAR History">The South African Railways – Historical Survey. Editor George Hart, Publisher Bill Hart, Sponsored by Dorbyl Ltd., Published c. 1978, pp. 20, 22-23, 25.</ref>
===Imperial Military Railways===
All railway operations in the two Boer Republics, the ZAR and the Orange Free State, were taken over by the Imperial Military Railways (IMR) in 1899 and operated by the invading military for the duration of the war.<ref name="SAR History"/>
===Central South African Railways===
At least two of the three locomotives survived the war. At the end of the war, the IMR was transformed into the [[Central South African Railways]] (CSAR).<ref name="Holland 1"/>
===South African Railways===
When the [[Union of South Africa]] was established on 31 May 1910, the three Colonial government railways (CGR, [[Natal Government Railways]] and CSAR) were united under a single administration to control and administer the railways, ports and harbours of the Union. Although the South African Railways and Harbours came into existence in 1910, the actual classification and renumbering of all the rolling stock of the three constituent railways were only implemented with effect from 1 January 1912.<ref name="SAR History"/><ref name="SAR Renumber"/>
Two of the locomotives, the engines ''Nylstroom'' and ''Pietersburg'', survived in railway service to be taken onto the South African Railways (SAR) roster in 1912. Since they were considered obsolete, they were excluded from the SAR classification and renumbering list. In spite of being obsolete, both of them survived in SAR service into the 1940s, employed as shunting engines at the Salvokop workshops in Pretoria and to test the steam heating system of passenger trains.<ref name="SAR&H Dec 1944"/><ref name="SAR Renumber">Classification of S.A.R. Engines with Renumbering Lists, issued by the Chief Mechanical Engineer's Office, Pretoria, January 1912, p. 2 (Reprinted in April 1987 by SATS Museum, R.3125-6/9/11-1000)</ref><ref name="Paxton-Bourne">{{Paxton-Bourne|pages=23–24}}</ref><ref name="Soul of a Railway 8-1">[https://sites.google.com/site/soulorailway/home/system-8/part-1-pretoria-local-services-workshops-and-running-sheds Soul of A Railway, System 8, Part 1: Pretoria: including local services, workshops and running sheds, Part 1. Caption 31.] {{Webarchive|url=https://web.archive.org/web/20170319200012/https://sites.google.com/site/soulorailway/home/system-8/part-1-pretoria-local-services-workshops-and-running-sheds |date=19 March 2017 }} (Accessed on 15 March 2017)</ref>
Upon their eventual retirement, the engines ''Nylstroom'' and ''Pietersburg'' were plinthed outside the Nylstroom and Pietersburg stations respectively.<ref name="Holland 1"/><ref name="Soul of a Railway 8-1"/>
==Works numbers==
The 26 Tonner names, works numbers and years built are as follows:<ref name="Holland 1"/>
* The engine ''Pretoria'' – 2346 of 1896.
* The engine ''Pietersburg'' – 2369 of 1897.
* The engine ''Nylstroom'' – 2370 of 1897.
==Illustration==
All three 26 Tonner locomotives are illustrated in the following photographs.
<gallery mode=packed heights="220px">
File:PPR 26 Tonner 0-6-0ST Pretoria.jpg|Hawthorn Leslie builder's picture of the engine ''Pretoria'', c. 1896
File:PPR 26 Tonner 0-6-0ST Pretoria & Pietersburg.jpg|The engines "Pretoria" and "Pietersburg", c. 1897
File:PPR 26 Tonner 0-6-0ST Nylstroom.jpg|The ''Nylstroom'', plinthed at Nylstroom station, 28 April 1992
File:PPR 26 Tonner 0-6-0ST Pietersburg.jpg|The ''Pietersburg'', plinthed at Pietersburg station, 3 February 1992
</gallery>
==References==
{{Commons category|PPR 26 Tonner (0-6-0ST)|PPR 26 Tonner 0-6-0ST|position=left}}
{{Reflist}}
{{Locomotives of the CSAR}}
{{Locomotives of South Africa}}
[[Category:PPR locomotives|0850]]
[[Category:0-6-0ST locomotives]]
[[Category:C locomotives]]
[[Category:Hawthorn Leslie and Company locomotives]]
[[Category:Cape gauge railway locomotives]]
[[Category:Railway locomotives introduced in 1896]]
[[Category:1896 in South Africa]]