Bavarian Gts 4/4

The only Bavarian Class Gts 4/4 locomotive in the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn) was built in 1909 for the meter gauge line between Eichstätt and Kinding.

Bavarian Gts 4/4
DRG Class 99.15
Number(s)K.Bay.StsE.: 991
DRG: 99 151
Quantity1
ManufacturerKrauss
Year(s) of manufacture1909
Retired1935
Wheel arrangement0-8-0T
Axle arrangementD n2t
TypeK 44.7
Track gauge1,000 mm (3 ft 3 38 in)
Length over buffers8,442 mm (27 ft 8 14 in)
Height3,565 mm (11 ft 8 14 in)
Wheelbase870 or 860 mm (2 ft 10 14 in or 2 ft 9 34 in)
Overall wheelbase2,600 mm (8 ft 6 14 in)
Empty weight20.70 t (20.37 long tons; 22.82 short tons)
Service weight26.0 t (25.6 long tons; 28.7 short tons)
Top speed30 km/h (19 mph)
Indicated Power150 PS (110 kW; 148 hp)
Driving wheel diameter800 mm (2 ft 7 12 in)
Valve gearWalschaerts (Heusinger) with straight rocker arm (Schwinge)
No. of cylinders2
Cylinder bore320 mm (12 58 in)
Piston stroke400 mm (15 34 in)
Boiler Overpressure12 kgf/cm2 (1,180 kPa; 171 lbf/in2)
No. of heating tubes108
Heating tube length3,260 mm (10 ft 8 14 in)
Grate area0.82 m2 (8.8 sq ft)
Radiative heating area3.64 m2 (39.2 sq ft)
Tube heating area44.65 m2 (480.6 sq ft)
Evaporative heating area48.29 m2 (519.8 sq ft)
Water capacity2.2 m3 (480 imp gal; 580 US gal)
Fuel1.44 t (3,200 lb) coal
Locomotive brakesExter counterweight brake
Train brakesWestinghouse compressed-air brake

The four coupled axles were very close together, so that tight curves could be negotiated. The centre axles were installed with side play, which meant the connecting rod had to drive the fourth axle. The wheelbase was only 2.6 metres and, with the overall length of the locomotive being almost 8.5 metres, it had very long overhangs. The result was a relatively rough ride.

A striking feature was the very large size of the driver's cab. The locomotive frame was designed as a water tank, and on the steam dome was a safety valve protected by a housing. The engine carried 2.2 m3 of water and 1.2 tonnes of coal.

The locomotive was mainly used in rollbock services between Eichstätt and a quarry. After the formation of the Deutsche Reichsbahn it was taken over and grouped as DRG Class 99.15 with the number 99 151. The engine was retired in 1935, after the conversion of the route to standard gauge.

See also

Sources

    • Hoecherl, Ernst (1984). Eichstätter Schmalspurbahn 1885-1934. Egglham und München: Bufe-Fachbuch-Verlag. ISBN 3-922138-18-7.
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