Bavarian Pts 3/4

The Bavarian Pts 3/4 steam locomotives of the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn) were employed on the steam 'tramway' between Altötting and Neuötting. A total of four machines were built, nos. 1101, 1102 and 1103 in 1906 and no. 1104 not until the retirement of no. 1102 in 1922. They had a covered driving gear, a high boiler with water tanks located beneath it, gangways and a railing for the running plate. The engines carried 2.5 m³ (88 cu ft) of water and 0.5 tonnes (0.49 long tons; 0.55 short tons) of coal on board.

Bavarian Pts 3/4 DRG Class 99.13
Number(s)	1101–1104 99 131–133
Quantity	4
Manufacturer	Krauss
Year(s) of manufacture	1906, 1923
Retired	1922 - 1931
Wheel arrangement	2-6-0
Axle arrangement	1'C h2t
Type	K 34.8
Track gauge	1,000 mm (3 ft 3 ^3⁄8 in)
Length over buffers	6,650 mm (21 ft 9.81 in)
Service weight	27.7 t (27.3 long tons; 30.5 short tons)
Top speed	30 km/h (19 mph)
Driving wheel diameter	800 mm (31.50 in)
Leading wheel diameter	500 mm (19.69 in)
Valve gear	Walschaerts (Heusinger)
No. of cylinders	2
Cylinder bore	380 mm (14.961 in)
Piston stroke	340 mm (13.386 in)
Boiler Overpressure	12 bar (1,200 kPa; 170 psi)
Grate area	0.79 m^2 (8.5 sq ft)
Superheater area	9.20 m^2 (99.0 sq ft)
Evaporative heating area	36.65 m^2 (394.5 sq ft)
Water capacity	2.5 m^3 (88 cu ft)
Fuel	0.5 t (0.49 long tons; 0.55 short tons) coal

After the foundation of the Deutsche Reichsbahn the remaining three locomotives were taken over and grouped into DRG Class 99.13. They were given the numbers 99 131 - 99 133. The locos were only used as reserve engines after the closure of the route in 1930 and retired in 1931. Number 99 133 (ex no. 1104, factory no. 7986), however, found a new job on the Wallersdorf – Münchshöfen branch line where it worked from 1938 to the closure of the line in 1949. It was then scrapped.

See also

• List of Bavarian locomotives and railbuses
• Bavarian branch lines

References

• Obermayer, Horst J. (1971). Taschenbuch Deutsche Schmalspur-Dampflokomotiven (in German). Stuttgart: Franckh. ISBN 3-440-03818-1.