View source for Saxon I TV

{{No footnotes|date=October 2020}}
{{Infobox locomotive
| name             = I TV<br /> DR Class 98.0
| bgcolor          = 698B69
| color            = FFFFFF
| image            = 98 001 Freital-Hainsberg 27.08.83.jpg
| caption          = 98 001 in Freital-Hainsberg, 27 August 1983
| builder          = [[Sächsische Maschinenfabrik]], [[Chemnitz]]
| builddate        = 1910–1914
| totalproduction  = 19
| uicclass         = B′B′ n4vt
| gauge            = {{RailGauge|sg}}
| driverdiameter   = {{convert|1260|mm|ftin|frac=8|abbr=on}}
| over bufferbeams = {{convert|11624|mm|ftin|frac=4|abbr=on}}
| axleload         = {{convert|15.4|t}}
| emptyweight      = {{convert|47.8|-|50.4|t}}
| serviceweight    = {{convert|59.0|-|62.0|t}}
| weightondrivers  = {{convert|60.5|t}}
| tendertype       = 
| fuelcap          = {{convert|2200|kg}}
| watercap         = {{convert|5000|L}}
| heatingtubes     = 199
| heatingtubelength= {{convert|3700|mm|ftin|frac=4|abbr=on}}
| boilerpressure   = {{convert|13|kg/cm2|kPa psi|sigfig=3|abbr=on}}
| tubearea         = {{convert|92.5|m2|abbr=on}}
| fireboxarea      = {{convert|1.60|m2|abbr=on}}
| radiativearea    = {{convert|6.8|m2|abbr=on}}
| evaporativearea  = {{convert|99.28|m2|abbr=on}}
| cylindercount    = 4
| pistonstroke     = {{convert|630|mm|in|frac=16|abbr=on}}
| hpcylindersize   = {{convert|360|mm|in|frac=16|abbr=on}}
| lpcylindersize   = {{convert|570|mm|in|frac=16|abbr=on}}
| valvegear        = [[Walschaerts]] (Heusinger)
| locobrakes       = Westinghouse
| maxspeed         = {{convert|50|km/h|mph|0|abbr=on}}
| indicatedpower   = {{convert|540|PS|kW hp|abbr=on}}
| fleetnumbers     = KSäStE: 1381–1398<br/>DRG: 98 001 – 98 015
| retiredate       = 1931–1968
}}
The '''Saxon class I T<math>\textstyle \mathfrak{V}</math>''' were a class of 19 German [[0-4-4-0]] [[Meyer locomotive|Meyer]] [[tank locomotive]]s built for the [[Royal Saxon State Railways]] ({{langx|de|Königlich Sächsischen Staatseisenbahnen}}, K.Sä.St.E) for service of the {{Interlanguage link|Windbergbahn|lt=|de||WD=}}. The [[Deutsche Reichsbahn]] assigned them to '''Class 98.0'''.

== History ==
[[File:Windbergbahn_Denkmal.jpg|left|thumb|Monument for the  ''[[Windbergbahn]]'' in the form of locomotive 98 014 carved out of sandstone near the  [[Burgk Castle]] in Freital]]
[[File:Industriemuseum_Chemnitz_-_Sächsische_I_TV_(BR_98_001_ex_I_TV_1394).jpg|left|thumb|Locomotive 98 001 (ex I TV 1394) in the Industrial Museum Chemnitz]]
Near Dresden, the Royal Saxon State Railways had the ''Windbergbahn'', a branch line primarily serving coal traffic, which, in addition to a steep incline, also had a minimum curve of only {{Convert|85|m|ftin|abbr=}} in radius. At the turn of the century, the performance of the previously used locomotives of the [[Saxon VII T|VII T class]] was no longer sufficient. The reasons for this were the onset of excursion traffic as well as increasing transport volumes in coal transport. Between 1910 and 1914, the [[Sächsische Maschinenfabrik]] delivered a total of 19 locomotives in 3 lots, which were largely similar in their design to the tried and tested narrow-gauge locomotives of the [[Saxon IV K|IV K class]]. The construction lots differed in terms of their service weights and external design. They were popularly known as "Windberglok" or "Cross spider" ({{Langx|de|Kreuzspinne}}).

Three locomotives were lost in [[World War I]]; the Deutsche Reichsbahn took over the remaining 15 locomotives in 1920 and gave them the numbers 98 001 to 98 015. Like all locomotives of the 98 series, the machines were thus classified as local railway ({{Langx|de|text=Lokalbahn}}) locomotives.

In 1940 the Reichsbahn took over another locomotive of this type that had been delivered to the {{Interlanguage link|Oberhohndorf-Reinsdorfer Kohleneisenbahn|lt=Oberhohndorf-Reinsdorf Coal Railway|de||WD=}} and gave it the road number 98 015 (second); the first 98 015 having been retired.

All the remaining locomotives survived [[World War II]]. Two locomotives were badly damaged in the air raid on 13 February 1945, but were rebuilt. They continued to be used on their main line in passenger and freight traffic. Between 1952 and 1962 they were used [[Double heading|double-heading]] uranium ore block trains to Dresden-Gittersee. The trains consisted of 10 wagons with a capacity of 20 tons each. The eight remaining locomotives transported 560,000 tons of uranium ore to Gittersee every year. It was only with the introduction of locomotives of the {{Interlanguage link|DR-Baureihe V 60|lt=DR Class V 60|de||WD=}} (later series 106, now 346) with wheel flange lubrication that the locomotives could be replaced on the winding route at the end of the 1960s. The last class 98.0 was retired in 1968.

The 98 001 (ex K.SäSt.E. 1394) has been preserved and is part of the holdings of the [[Dresden Transport Museum]]. It is currently on loan at the Industrial Museum in Chemnitz.

== Technical features ==
The locomotives had a two-ring boiler with a Crampton firebox. Two non-lifting Friedmann injectors were used to feed the boiler. From 1914, those of the Winzer type were also used.

The steam circuit was designed as a four-cylinder compound drive with [[Walschaerts valve gear]] (Heusinger) and flat [[slide valve]]s. The smaller high-pressure cylinders were on the front, the larger low-pressure cylinders on the rear bogie. The bogies were connected by a coupling iron in order to reduce any counter-rotating movements.

The water supply was housed in side tanks, the coal in a bunker behind the driver's cab.

The locomotives were factory-fitted with a [[Railway air brake|Westinghouse air brake]], supplemented by a [[counterweight brake]]. As special equipment, they were provided with a Latowski-type of steam-driven bell.

== References ==
* {{cite book| first1=Fritz |last1=Näbrich |first2=Günter |last2=Meyer |first3=Reiner |last3=Preuß |year=1983 |title=Lokomotivarchiv Sachsen 2 |publisher=transpress VEB Verlag für Verkehrswesen / Alba Publikation Alf Teloeken GmbH + Co KG |location=Berlin / Düsseldorf |isbn=3-87094-096-4 |lang=German}}
* {{Cite book| last1=Preuß |first1=Erich |last2=Preuß |first2=Reiner |title=Sächsische Staatseisenbahnen|date=1991|publisher=transpress Verlagsgesellschaft |location=Berlin |isbn=3-344-70700-0 |lang=German}}
* {{cite magazine |first=Rainer |last=Scheffler |title=Über die "Kreuzspinnen" der Windbergbahn |journal=Modelleisenbahner  |year=1981 |volume=30 |issue=3 |pages= 75–76 |lang=German}}
* {{cite book | first=Jürgen |last=Schubert |title=Die Windbergbahn |year=1982 |publisher = transpress VEB Verlag für Verkehrswesen / alba Verlag |location=Berlin / Düsseldorf |isbn=3-87094-202-9 |lang=German}}
* {{cite book |first=Günther |last=Reiche  |title=Richard Hartmann und seine Lokomotiven |publisher=Oberbaumverlag |location=Chemnitz |year=1998 |isbn=3-928254-56-1 |lang=German}}
* {{Weisbrod-EFA1.4|pages=33–35}}

{{Saxon locomotives}} 

{{DEFAULTSORT:Saxon 01 TV}}
[[Category:0-4-4-0T locomotives]]
[[Category:Locomotives of Saxony|01 TV]]
[[Category:Sächsische Maschinenfabrik locomotives]]
[[Category:Railway locomotives introduced in 1910]]
[[Category:Standard-gauge locomotives of Germany]]
[[Category:Meyer locomotives]]