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[[Maffei (company)|Maffei]] built ten machines in 1904 that shared many of the same components as the [[Bavarian S 3/5|S 3/5]], which was developed in parallel. 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 [[USA]], they had a four-[[Cylinder (steam locomotive)|cylinder]] [[compound locomotive|compound engine]]. However the usual European configuration with two inside and two outside cylinders was used instead of the Vauclain compound system.
[[Maffei (company)|Maffei]] built ten machines in 1904 that shared many of the same components as the [[Bavarian S 3/5|S 3/5]], which was developed in parallel. 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 [[USA]], they had a four-[[Cylinder (steam locomotive)|cylinder]] [[compound locomotive|compound engine]]. However the usual European 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 [[Atlantic (locomotive)|Atlantics]] the traction of the two driven axles was soon insufficient. The S 2/5 was not endowed with a long time in service, although the locomotive had very good riding qualities.
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 endowed with a long time in service, although the locomotive had very good riding qualities.


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.

Revision as of 20:03, 20 August 2008

Bavarian S 2/5
DRG Class 14.1
Bavarian S 2/5
Type and origin
BuilderMaffei
Build date1904
Total produced10
Specifications
Configuration:
​
 • Whyte4-4-2
Gauge1,435 mm
Leading dia.950 mm
Driver dia.2,000 mm
Trailing dia.1,206 mm
Length:
​
 • Over buffers19,275 mm
Axle load16.0 t
Adhesive weight32.0 t
Service weight68.6 t
Tender typeBavarian 2'2' T 21
Water cap.21.0 m³
Firebox:​
 • Grate area3.27 m²
Boiler pressure16 bar
Heating surface205.50 m²
Cylinders4
High-pressure cylinder340 mm
Low-pressure cylinder570 mm
Piston stroke640 mm
Performance figures
Maximum speed110 km/h
Career
NumbersDRG 14 141–145
Retired1927

The Class S 2/5 steam locomotives of the Royal Bavarian State Railways (Königlich Bayerische Staats-Eisenbahnen) were the first steam engines in Germany to be built with full locomotive 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.

Maffei built ten machines in 1904 that shared many of the same components as the S 3/5, which was developed in parallel. 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 USA, they had a four-cylinder compound engine. However the usual European 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 endowed with a long time in service, although the locomotive had very good riding qualities.

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



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