Bavarian S 2/5: Difference between revisions
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The Class '''S 2/5''' [[express locomotive]]s of the [[Royal Bavarian State Railways]] (''Königlich Bayerische Staats-Eisenbahnen'') were the first steam engines in |
The Class '''S 2/5''' [[express locomotive]]s of the [[Royal Bavarian State Railways]] (''Königlich Bayerische Staats-Eisenbahnen'') were the first steam engines in Germany to be built with full-length [[bar frame]]s (''durchgehendem Barrenrahmen''). The prototypes for this type of frame were the two locomotives imported in 1900 from [[Baldwin Locomotive Works]] in the USA, that had been similarly classified as the [[Bavarian S 2/5 (Baldwin)|S 2/5]]. |
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== History == |
== History == |
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In 1904, [[Maffei (company)|Maffei]] built ten engines that shared many of the same components as the [[Bavarian S 3/5|S 3/5]], which was developed in parallel. For example, they did not use a wider [[firebox (steam engine)|firebox]], which would have been possible given the [[wheel arrangement]], in order to be able to use one that could be used on the S 3/5. So the firebox was only around 90 |
In 1904, [[Maffei (company)|Maffei]] built ten engines that shared many of the same components as the [[Bavarian S 3/5|S 3/5]], which was developed in parallel. For example, they did not use a wider [[firebox (steam engine)|firebox]], which would have been possible given the [[wheel arrangement]], in order to be able to use one that could be used on the S 3/5. So the firebox was only around 90 mm wider than the bar frame of the locomotive. For manufacturing reasons the sole bar was still not made of one piece, but forged from several bars. |
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For the first time in [[Kingdom of Bavaria|Bavaria]] a [[driving wheel]] diameter of 2,000 mm was chosen instead of the 1,870 mm diameter hitherto the norm for [[express train]] locomotives. Like the locomotives imported from the |
For the first time in [[Kingdom of Bavaria|Bavaria]] a [[driving wheel]] diameter of 2,000 mm was chosen instead of the 1,870 mm diameter hitherto the norm for [[express train]] locomotives. Like the locomotives imported from the United States, they had a four-[[Cylinder (steam locomotive)|cylinder]] [[compound locomotive|compound engine]]. However the usual European ([[von Borries]]) configuration with two inside and two outside cylinders was used instead of the [[Vauclain compound]] system. |
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On test runs, one of the locomotives reached 135 km/h; in normal use, 110 km/h was the top speed. The locomotives were initially stabled at [[Munich]] I shed and hauled such famous trains as the ''[[Orient Express]]'' and the ''[[North-South Express]]'', amongst others. But, as on all German [[4-4-2 (locomotive)|Atlantics]] the traction of the two driven axles was soon insufficient. The S 2/5 was not blessed with a long time in service, although the locomotive had very good riding qualities and was seen as a genuinely fast runner. |
On test runs, one of the locomotives reached 135 km/h; in normal use, 110 km/h was the top speed. The locomotives were initially stabled at [[Munich]] I shed and hauled such famous trains as the ''[[Orient Express]]'' and the ''[[North-South Express]]'', amongst others. But, as on all German [[4-4-2 (locomotive)|Atlantics]] the traction of the two driven axles was soon insufficient. The S 2/5 was not blessed with a long time in service, although the locomotive had very good riding qualities and was seen as a genuinely fast runner. |
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In 1910 the locomotives went across to the [[Palatinate Railway|Palatine]] network to [[Ludwigshafen]] shed and also to the [[Nuremberg]] repair shop. In 1922 only eight S 2/5 engines remained. The [[Deutsche Reichsbahn-Gesellschaft|Deutsche Reichsbahn]] took over just five locomotives as the '''Class 14.1''', numbered 14 141–145. They were retired in 1927. |
In 1910 the locomotives went across to the [[Palatinate Railway|Palatine]] network to [[Ludwigshafen]] shed and also to the [[Nuremberg]] repair shop. In 1922 only eight S 2/5 engines remained. The [[Deutsche Reichsbahn-Gesellschaft|Deutsche Reichsbahn]] took over just five locomotives as the '''Class 14.1''', numbered 14 141–145. They were retired in 1927. |
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The locomotives had Bavarian 2'2' T 21 [[Tender locomotive|tenders]]. |
The locomotives had Bavarian 2'2' T 21 [[Tender locomotive|tenders]]. |
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Revision as of 20:22, 7 July 2016
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The Class S 2/5 express locomotives of the Royal Bavarian State Railways (Königlich Bayerische Staats-Eisenbahnen) were the first steam engines in Germany to be built with full-length bar frames (durchgehendem Barrenrahmen). The prototypes for this type of frame were the two locomotives imported in 1900 from Baldwin Locomotive Works in the USA, that had been similarly classified as the S 2/5.
History
In 1904, Maffei built ten engines that shared many of the same components as the S 3/5, which was developed in parallel. For example, they did not use a wider firebox, which would have been possible given the wheel arrangement, in order to be able to use one that could be used on the S 3/5. So the firebox was only around 90 mm wider than the bar frame of the locomotive. For manufacturing reasons the sole bar was still not made of one piece, but forged from several bars.
For the first time in Bavaria a driving wheel diameter of 2,000 mm was chosen instead of the 1,870 mm diameter hitherto the norm for express train locomotives. Like the locomotives imported from the United States, they had a four-cylinder compound engine. However the usual European (von Borries) configuration with two inside and two outside cylinders was used instead of the Vauclain compound system.
On test runs, one of the locomotives reached 135 km/h; in normal use, 110 km/h was the top speed. The locomotives were initially stabled at Munich I shed and hauled such famous trains as the Orient Express and the North-South Express, amongst others. But, as on all German Atlantics the traction of the two driven axles was soon insufficient. The S 2/5 was not blessed with a long time in service, although the locomotive had very good riding qualities and was seen as a genuinely fast runner.
In 1910 the locomotives went across to the Palatine network to Ludwigshafen shed and also to the Nuremberg repair shop. In 1922 only eight S 2/5 engines remained. The Deutsche Reichsbahn took over just five locomotives as the Class 14.1, numbered 14 141–145. They were retired in 1927.
The locomotives had Bavarian 2'2' T 21 tenders.
See also
External links
- There is a relevant English-language forum at Railways of Germany
| Early locomotives |  | |
|---|---|---|
| Passenger and express train locomotives | ||
| Goods train locomotives | ||
| Tank locomotives | ||
| Branch line locomotives | ||
| Narrow gauge locomotives | ||
| Electric locomotives | ||
| Railbuses | ||
| Bavarian Ostbahn locomotives | ||