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{| class="prettytable float-right" width="500" align="right"
{| class="wikitable float-right" width="500" align="right"
|--
|--
! colspan="5" style="color:white; background:#698B69" | Saxon IIIb <br/> DRG Class 52.7 <br/> DRG Class 34.77–78
! colspan="5" style="color:white; background:#698B69" | '''Saxon IIIb''' <br/> DRG Class 52.70 <br/> DRG Class 34.77–78
|-
! colspan="5" align="centre |[[File:IIIb Pötzscha.jpg|300px|]]
|-
|-
| Manufacturers: || [[Maschinenfabrik Esslingen|Esslingen]] || [[Berliner Maschinenbau AG|Schwartzkopf]] || [[Sächsische Maschinenfabrik|Hartmann]] || [[Henschel-Werke|Henschel]]
| Manufacturers: || [[Maschinenfabrik Esslingen|Esslingen]] || [[Berliner Maschinenbau AG|Schwartzkopf]] || [[Sächsische Maschinenfabrik|Hartmann]] || [[Henschel-Werke|Henschel]]
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| Numbers: || 274–287 <br/> 52 7001 || 288–319 <br/> 34 7701–7702 || 320–334 <br/> 34 7721–7808|| 335–491 <br/>
| Numbers: || 274–287 <br/> 52 7001 || 288–319 <br/> 34 7701–7702 || 320–334 <br/> 34 7721–7808|| 335–491 <br/>
|-
|-
| Entered service: || 1874 || 1873-1876 || 1874-1901 || 1876
| Entered service: || 1874 || 1873–1876 || 1874–1901 || 1876
|-
|-
| Retired: || colspan="4"align="center" | by end of 1920s
| Retired: || colspan="4"align="center" | by end of the 1920s
|-
|-
| [[Whyte notation|Wheel arrangement]]: ||colspan="4" align="center" | [[2-4-0]]
| [[Whyte notation|Wheel arrangement]]: ||colspan="4" align="center" | {{whyte|2-4-0}}
|-
|-
| [[UIC classification|Axle arrangement]]: || colspan="4" align="center" | 1'Bn2
| [[UIC classification|Axle arrangement]]: || colspan="4" align="center" | 1'Bn2
|-
|-
| Service weight: || 34.6 t || colspan="3" align="center"| 35,8 t
| Service weight: || 34.6 t || colspan="3" align="center"| 35.8 t
|-
|-
| [[Axle load]]: || colspan="4" align="center"| 11.5 t
| [[Axle load]]: || colspan="4" align="center"| 11.5 t
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| [[Adhesive weight]]: || 23.1 t || colspan="3" align="center" | 23.8 t
| [[Adhesive weight]]: || 23.1 t || colspan="3" align="center" | 23.8 t
|-
|-
| Length over [[buffers]]: || k.A. || colspan="3" align="center"| 13,854 / 13,050 mm
| Length over [[Buffer (rail transport)|buffers]]: || N/K || colspan="3" align="center"| {{convert|13854|mm|ftin|frac=4|abbr=on}} / {{convert|13050|mm|ftin|frac=4|abbr=on}}
|-
|-
| [[Driving wheel]] diameter: || 1,525 mm || colspan="3" align="center"| 1,560 mm
| [[Driving wheel]] diameter: || {{convert|1525|mm|ftin|abbr=on}} || colspan="3" align="center"| {{convert|1560|mm|ftin|frac=8|abbr=on}}
|-
|-
| [[Carrying wheel]] diameter: || 990 mm || colspan="3"align="center" | 1,035 mm
| [[Carrying wheel]] diameter: || {{convert|990|mm|in|abbr=on}} || colspan="3"align="center" | {{convert|1035|mm|ftin|frac=8|abbr=on}}
|-
|-
| Top speed: || 70 km/h || colspan="3" align="center"| 60 / 70 km/h
| Top speed: || {{convert|70|km/h|abbr=on}} || colspan="3" align="center"| {{convert|60|km/h|abbr=on}} / {{convert|70|km/h|abbr=on}}
|-
|-
| [[Boiler]] [[overpressure]]: || 8.5 bar || colspan="3" align="center"| 10 bar
| [[Boiler]] [[overpressure]]: || 8.5 bar || colspan="3" align="center"| {{convert|10|kg/cm2|kPa psi|sigfig=3|abbr=on}}
|-
|-
| [[Piston stroke]]: || colspan="4"align="center" | 560 mm
| [[Piston stroke]]: || colspan="4"align="center" | {{convert|560|mm|in|frac=16|abbr=on}}
|-
|-
| [[Cylinder (locomotive)|Cylinder bore]]: || colspan="4" align="center"| 406 mm
| [[Cylinder (locomotive)|Cylinder bore]]: || colspan="4" align="center"| {{convert|406|mm|in|frac=16|abbr=on}}
|-
|-
| Grate area: || 1.55 m² || colspan="3"align="center" | 1.60 / 166 m²
| Grate area: || {{convert|1.55|m2|sqft|abbr=on}} || colspan="3"align="center" | {{convert|1.60|m2|sqft|abbr=on}} / {{convert|1.66|m2|sqft|abbr=on}}
|-
|-
| Evaporative heating area: || 90.80 m² || colspan="3" align="center"| 92.93 m²
| Evaporative heating area: || {{convert|90.80|m2|sqft|abbr=on}} || colspan="3" align="center"| {{convert|92.93|m2|sqft|abbr=on}}
|-
|-
| Brakes: || colspan="4" align="center" | [[Countersteam brake]]<br>[[Westinghouse]] [[compressed-air brake]]
| Brakes: || colspan="4" align="center" | [[Countersteam brake]]<br>[[Westinghouse Air Brake Company|Westinghouse]] [[compressed-air brake]]
|}
|}
The '''Saxon Class III b''' were German steam locomotives built for the [[Royal Saxon State Railways]] (''Königlich Sächsische Staatseisenbahnen'') in the late 19th century as tender locomotives for express train duties. In 1925, the [[Deutsche Reichsbahn-Gesellschaft|Deutsche Reichsbahn]] incorporated the engines into '''DRG Class 34.77-78'''.
The '''Saxon Class III b''' were German steam locomotives built for the [[Royal Saxon State Railways]] (''Königlich Sächsische Staatseisenbahnen'') in the late 19th century as tender locomotives for express train duties. In 1925, the [[Deutsche Reichsbahn-Gesellschaft|Deutsche Reichsbahn]] incorporated the engines into '''DRG Class 34.77-78'''.


Between 1873 and 1901, a total of 204 locomotives were delivered to the Royal Saxon State Railways by the firms of [[Sächsische Maschinenfabrik|Hartmann]], [[Henschel-Werke|Henschel]] and [[Berliner Maschinenbau AG|Schwartzkopff]]. During the course of their manufacture there were continual modifications. Eighteen were built as compound engines.
Between 1873 and 1901, a total of 204 locomotives were delivered to the Royal Saxon State Railways by the firms of [[Sächsische Maschinenfabrik|Hartmann]], [[Henschel-Werke|Henschel]] and [[Berliner Maschinenbau AG|Schwartzkopff]]. During the course of their manufacture there were continual modifications. Eighteen were built as compound engines.


The Reichsbahn took over 91 machines and gave them the running numbers 34 7701, 34 7702,<br /> 34 7721–34 7808.
The Reichsbahn took over 91 machines and gave them the running numbers 34 7701, 34 7702,<br /> 34 7721–34 7808.


===Rebuild of the Saxon Class III===
==Rebuild of the Saxon Class III==
Later, 14 engines of the [[Saxon III|Saxon Class III]] were equipped with ''Nowotny'' steerable axles and also classified as Saxon IIIb locomotives. Of fourteen such engines, only one entered the Deutsche Reichsbahn where it was given the running number 52 7001.
Later, 14 engines of the [[Saxon III|Saxon Class III]] were equipped with ''Nowotny'' steerable axles and also classified as Saxon IIIb locomotives. Of fourteen such engines, only one entered the Deutsche Reichsbahn where it was given the running number 52 7001.


The locomotives equipped with Saxon sä 3 T 7.5 und sä 3 T 9 [[tender (rail)|tender]]s.
The locomotives equipped with Saxon sä 3 T 7.5 und sä 3 T 9 [[tender (rail)|tender]]s.


== Literature ==
== References ==
{{Spielhoff}}
{{Reflist}}
* {{Hütter-50bis53|p=393}}
* {{Näbrich-EFA2.1|pages=123–139, 207–209}}
* {{Spielhoff}}
* {{Weisbrod-EFA1.1|pages=194–196}}
* {{Weisbrod-EFA1.2|pages=72–73}}


==See also==
==See also==
Line 61: Line 68:
*[[List of Saxon locomotives and railbuses]]
*[[List of Saxon locomotives and railbuses]]


{{Saxon locomotives}}
== External links ==
* [http://www.private-nbahn.de/ Technical data and photos of historical locos (German)]
* There is a relevant English-language forum at [http://germanrail.8.forumer.com/index.php Railways of Germany]


{{DEFAULTSORT:Saxon 03b}}
[[Category:2-4-0 locomotives]]
[[Category:2-4-0 locomotives]]
[[Category:Saxon locomotives]]
[[Category:Locomotives of Saxony|03 b]]
[[Category:Esslingen locomotives]]

[[Category:Berliner locomotives]]
[[de:Sächsische IIIb]]
[[Category:Henschel locomotives]]
[[Category:Sächsische Maschinenfabrik locomotives]]
[[Category:Railway locomotives introduced in 1873]]
[[Category:1B n2 locomotives]]
[[Category:Passenger locomotives]]

Latest revision as of 10:24, 24 December 2023

Saxon IIIb
DRG Class 52.70
DRG Class 34.77–78
Manufacturers: Esslingen Schwartzkopf Hartmann Henschel
Quantity: 14
Rebuild from III		 32 157 15
Numbers: 274–287
52 7001		 288–319
34 7701–7702		 320–334
34 7721–7808		 335–491
Entered service: 1874 1873–1876 1874–1901 1876
Retired: by end of the 1920s
Wheel arrangement: 2-4-0
Axle arrangement: 1'Bn2
Service weight: 34.6 t 35.8 t
Axle load: 11.5 t
Adhesive weight: 23.1 t 23.8 t
Length over buffers: N/K 13,854 mm (45 ft 5+1⁄2 in) / 13,050 mm (42 ft 9+3⁄4 in)
Driving wheel diameter: 1,525 mm (5 ft 0 in) 1,560 mm (5 ft 1+3⁄8 in)
Carrying wheel diameter: 990 mm (39 in) 1,035 mm (3 ft 4+3⁄4 in)
Top speed: 70 km/h (43 mph) 60 km/h (37 mph) / 70 km/h (43 mph)
Boiler overpressure: 8.5 bar 10 kg/cm2 (981 kPa; 142 psi)
Piston stroke: 560 mm (22+1⁄16 in)
Cylinder bore: 406 mm (16 in)
Grate area: 1.55 m2 (16.7 sq ft) 1.60 m2 (17.2 sq ft) / 1.66 m2 (17.9 sq ft)
Evaporative heating area: 90.80 m2 (977.4 sq ft) 92.93 m2 (1,000.3 sq ft)
Brakes: Countersteam brake
Westinghouse compressed-air brake

The Saxon Class III b were German steam locomotives built for the Royal Saxon State Railways (Königlich Sächsische Staatseisenbahnen) in the late 19th century as tender locomotives for express train duties. In 1925, the Deutsche Reichsbahn incorporated the engines into DRG Class 34.77-78.

Between 1873 and 1901, a total of 204 locomotives were delivered to the Royal Saxon State Railways by the firms of Hartmann, Henschel and Schwartzkopff. During the course of their manufacture there were continual modifications. Eighteen were built as compound engines.

The Reichsbahn took over 91 machines and gave them the running numbers 34 7701, 34 7702,
34 7721–34 7808.

Rebuild of the Saxon Class III

[edit]

Later, 14 engines of the Saxon Class III were equipped with Nowotny steerable axles and also classified as Saxon IIIb locomotives. Of fourteen such engines, only one entered the Deutsche Reichsbahn where it was given the running number 52 7001.

The locomotives equipped with Saxon sä 3 T 7.5 und sä 3 T 9 tenders.

References

[edit]
  • Hütter, Ingo (2012). Die Dampflokomotiven der Baureihen 50 bis 53 der DRG, DRB, DB, und DR (in German). Werl: DGEG Medien. ISBN 978-3-937189-63-5.
  • Näbrich, Fritz; Preuß, Reiner; Meyer, Günter (1984). Lokomotiven sächsischer Eisenbahnen, Schnellzug- und Personenzuglokomotiven (EFA 2.1) (in German). Düsseldorf: Alba. pp. 123–139, 207–209. ISBN 3-87094-096-4.
  • Spielhoff, Lothar (1990). Länderbahn-Dampf-Lokomotiven. Band 1: Preußen, Mecklenburg, Oldenburg, Sachsen und Elsaß-Lothringen (in German). Stuttgart: Franckh'sche Verlagshandlung. ISBN 3-440-06145-0.
  • Weisbrod, Manfred; Müller, Hans; Petznik, Wolfgang (1976). Dampflokomotiven deutscher Eisenbahnen, Baureihe 01–39 (EFA 1.1) (in German) (3rd ed.). Düsseldorf: Alba Buchverlag. pp. 194–196. ISBN 3-87094-081-6.
  • Weisbrod, Manfred; Müller, Hans; Petznik, Wolfgang (1978). Dampflokomotiven deutscher Eisenbahnen, Baureihe 41–59 (EFA 1.2) (in German) (3rd ed.). Düsseldorf: Alba. pp. 72–73. ISBN 3-87094-082-4.

See also

[edit]
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