View source for FS Class 835

{{Infobox locomotive
| name             = FS 835
| bgcolor          = 00625A
| color            = FFFFFF
| image            = Rimessa ferroviaria pistoia 31.jpg
| caption          = FS locomotive 835.088 as preserved
| powertype        = Steam
| builder          = {{ubl|[[Gio. Ansaldo & C.]] (24),|[[Ernesto Breda]] (150),|[[Reggiane]] (30),|[[Officine Meccaniche]] (166)}}
| builddate        = 1906–1922
| totalproduction  = 370
| whytetype        = [[0-6-0T]]
| uicclass         = C n2t
| gauge            = {{track gauge|1435 mm}}
| driverdiameter   = {{convert|1310|mm|ftin|frac=8|abbr=on}}
| wheelbase        =
|  wheelspacing    = <!-- coupled wheels with asymmetrical wheel spacing -->{{ubl|{{convert|1750|mm|ftin|frac=8|abbr=on}}|<u>{{convert|1850|mm|ftin|frac=8|abbr=on}}</u>}}
|  engine total    = {{convert|3600|mm|ftin|frac=8|abbr=on}}
| length           =
|  over headstocks = {{convert|8140|mm|ftin|frac=8|abbr=on}}
|   over buffers   = {{convert|9160|mm|ftin|frac=8|abbr=on}}
| width            = {{convert|2910|mm|ftin|frac=8|abbr=on}}
| height           = {{convert|4205|mm|ftin|frac=8|abbr=on}}
| axleload         = {{convert|15.1|t|LT ST}}
| locoweight       = {{convert|45.3|t|LT ST}}
| fueltype         = Coal
| fuelcap          = {{convert|1500|kg|lb|abbr=on}}
| watercap         = {{convert|5000|L|sigfig=3|abbr=on}}
|  pitch           = {{convert|2105|mm|ftin|frac=8|abbr=on}}
| boilerpressure   = {{convert|12|kg/cm2|bar psi|sigfig=3|abbr=on}}
| firearea         = {{convert|1.48|m2|sqft|abbr=on}}
| totalsurface     = {{convert|78.22|m2|sqft|abbr=on}}
| cylindercount    = Two, outside
| cylindersize     = {{convert|420|x|580|mm|in|2|abbr=on}}
| valvegear        = [[Walschaerts valve gear|Walschaerts]]
| maxspeed         = {{convert|55|km/h|mph|0|abbr=on}}
| poweroutput      = {{convert|370|PS|kW hp|sigfig=3|abbr=on}}
| tractiveeffort   = {{convert|7680|kgf|kN lbf|sigfig=3|abbr=on}}
| operator         = [[Ferrovie dello Stato]]
| fleetnumbers     = 8351–8447, 83598–83816<br/>from 1919: 835.001 – 835.370
| withdrawndate    = 1984
| disposition      = 54 preserved
}}
The [[Ferrovie dello Stato Italiane]] (FS; Italian State Railways) '''Class 835''' (Italian: ''Gruppo 835'') is a {{whyte|0-6-0|T}} steam locomotive; it was the standard steam [[shunter]] of the FS.
==Design and construction==
The Class 835 was derived from the work of the [[Turin]] offices of the [[Rete Mediterranea]], and the previous experiences with the [[FS Class 829|Class 829]] and [[FS Class 830 I|Class 830]]; especially from the latter, the Class 835 took the boiler, coupled with an engine with enlarged cylinders.<ref>Cornolò, p. 476</ref>{{sfnb|Kalla-Bishop|1986|p=83}}
The first 97 locomotives, all built by [[Ernesto Breda]] until 1908, had only the counter-pressure steam brake; subsequent locomotives all had the air brakes.<ref>Cornolò, p. 477</ref>{{sfnb|Kalla-Bishop|1986|pp=83–84}}
In all, 370 Class 835 locomotives were built between 1908 and 1922 (with the pause imposed by [[World War I]], by Breda, [[Gio. Ansaldo & C.|Ansaldo]], [[Reggiane]] and [[Officine Meccaniche]], making the class one of the most numerous to circulate on Italian railways.<ref>Cornolò, p. 476</ref>{{sfnb|Kalla-Bishop|1986|p=84}}
==Service==
Nicknamed "''Cirilla''" or "''Pierina''", the Class 835 locomotives spent their careers on shunting duties throughout all the Italian network; in the 1930s, several of them were loaned to other private railways or to private companies.<ref>Cornolò, p. 479</ref>
Three of them (the 019, 198 and 220) remained in [[Yugoslavia|Yugoslav]] territory after [[World War II]] and were taken over by the [[Yugoslav Railways]] with the same running numbers.<ref>Cornolò, p. 480</ref>{{sfnb|Kalla-Bishop|1986|p=84}}
Between the 1950s and 1960s, the frames, wheels and coupling rods of several Class 835 locomotives were used in building 40 [[FS Class E.321|Class E.321]] and 20 [[FS Class E.322|Class E.322]] electric shunting locomotives, and 29 [[FS Class D.234|Class D.234]] diesel-hydraulic shunters.<ref>Cornolò, p. 480-1</ref>{{sfnb|Kalla-Bishop|1986|p=84}}
The Class 835 soldiered on until the end of regular steam services on the FS, with some 30 locomotives being still active in the early 1980s.{{sfnb|Kalla-Bishop|1986|p=84}}
==Preservation==
54 Class 835 locomotives survived into preservation, as the class was a favourite for the choice of a static exhibit in the waning years of steam. It is also present in the collection of several railway and transportation museums in Italy, among which the [[Pietrarsa railway museum]] and the [[Museo della Scienza e della Tecnologia "Leonardo da Vinci"]]. None is currently operational.<ref>{{cite web|title=Vapore - 835|url=http://smf.photorail.com/index.php?topic=11100.0|website=Photorail forum|access-date=15 December 2015}}</ref>
==Notes==
{{reflist}}
==Bibliography==
{{sfn whitelist|CITEREFKalla-Bishop1986}}
* {{cite journal|last1=Cornolò|first1=Giovanni|title=Locomotive a vapore|journal=TuttoTreno|date=October 2014|issue=4 }}
* {{Kalla-Bishop-FS-Steam}}
{{FS locos}}
[[Category:Ferrovie dello Stato Italiane steam locomotives|835]]
[[Category:0-6-0T locomotives]]
[[Category:Gio. Ansaldo & C. locomotives]]
[[Category:Breda locomotives]]
[[Category:Reggiane locomotives]]
[[Category:OM locomotives]]
[[Category:Railway locomotives introduced in 1906]]
[[Category:Standard gauge locomotives of Italy]]
[[Category:Shunting locomotives]]