Between 1908 and 1924, Maffei built 108 locomotives Class S 3/6 for K.Bay.St.B. road number (3601-3709). When the Deutsche Reichsbahn (DRG) was formed, all engines became Class 18.4/18.5 and were numbered 18 401 to 18 508.
Specifications (road number 3601-3623 / 3642-3649):
Axle configuration: 2C1 h4v
Drive Wheel diameter: 1870 mm
Overall length: 21221 mm
Grating area: 4.5 m2
Heating surface: 201.7 m2
Top speed: 120 km/h
Service weight: 88.3 tons / 89.7 tons
Water Supply: 26.2 m3
Coal supply: 7.5 tons
Specifications (road number 3624-3641):
Axle configuration: 2C1 h4v
Drive Wheel diameter: 2000 mm
Overall length: 22095 mm
Grating area: 4.5 m2
Heating surface: 202.7 m2
Top speed: 120 km/h
Service weight: 91.6 tons
Water Supply: 32.5 m3
Coal supply: 8 tons
Specifications (road number 3650-3709):
Axle configuration: 2C1 h4v
Drive Wheel diameter: 1870 mm
Overall length: 21221 mm
Grating area: 4.5 m2
Heating surface: 201.7 m2
Top speed: 120 km/h
Service weight: 92.3 tons / 94 tons
Water Supply: 26.4 m3
Coal supply: 7.5 tons / 8.5 tons
Arnold 2530
Bavarian Express passenger locomotive Class S 3/6
4-6-2 design.
Built by Maffei in 1909.
Road number 3610
Overall length: 159 mm
Manufacture period: 1977 - 1986
Leader house and boiler made of metal, without golden boiler rings
ARNOLD 2530 - S 3/6
