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Württemberg G
Germany | 1892 | 5 produced
A locomotive on a company photo with easily recognizable lever mechanism
A locomotive on a company photo with easily recognizable lever mechanism

Since the trains on the Geislinger Steige increasingly needed double-headed trains or pusher locomotives, a heavy freight locomotive was developed around 1890 that was supposed to be able to cope with these inclines on its own. The result was the type G, which was only built five times, but was remarkable with its complex construction.

On the route, the limited axle load made five coupled axles necessary to achieve the required adhesive load, but the narrow curve radii represented an obstacle. For this reason, a Klose chassis was installed, the axles of which were articulated by the movement of the tender and thus followed the course of the curve. A lever system ensured that the coupling rods were also adjusted. A three-cylinder compound engine, which acted on the second coupled axle, was used for better power development and smooth running under full steam.

The maximum speed of the locomotives was 45 km/h, like most freight locomotives of the time, and 680 tonnes could still be pulled at 18 km/h on a gradient of one percent. On the Geislinger Steige, where the gradient measures up to 2.25 percent, the G was still able to pull 300 tonnes at 13 km/h. Even if this value seems very low, double-headed locomotives could not do much more at that time. Later, the engines were replaced by the more powerful H type, which was produced in larger numbers. They were retired by 1921.

General
Built1892
ManufacturerEsslingen
Axle config0-10-0 (Ten-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length46 ft 2 5/16 in
Wheelbase19 ft 8 1/4 in
Fixed wheelbase8 ft 6 3/4 in
Empty weight136,135 lbs
Service weight151,854 lbs
Adhesive weight151,854 lbs
Total weight213,584 lbs
Axle load30,622 lbs
Water capacity2,642 us gal
Fuel capacity11,023 lbs (coal)
Power
Power sourcesteam
Estimated power805 hp (600 kW)
Optimal speed20 mph
Top speed28 mph
Starting effort26,281 lbf
with start valve31,537 lbf
Power Plant
Driver diameter48.4 in
Boiler pressure174 psi
Expansion typecompound
Cylindersthree, HP: 18 7/8 x 24 1/8 in
and LP: 18 7/8 x 24 1/8 in
Boiler
Grate area23.5 sq ft
Firebox area111.7 sq ft
Tube heating area2,204.8 sq ft
Evaporative heating area2,316.5 sq ft
Total heating area2,316.5 sq ft
Calculated Values
steam locomotive
freight
Klose engine
Eugen Kittel
last changed: 01/2022
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