Bavarian BI

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BI (Bavaria)
Year of construction (s): 1847ff.
Retirement: 1896
Type : 1B n2
Gauge : 1435 mm ( standard gauge )
Length over buffers: 12,585 / 13,670 mm
Service mass: 24.8 / 26.0 t
Friction mass: 17.1 / 17.4 t
Wheel set mass : 8.5 / 8.7 t
Top speed: 65 km / h
Driving wheel diameter: 1,372 / 1,400 mm
Impeller diameter front: 915 mm
Number of cylinders: 2
Cylinder diameter: 381 mm
Piston stroke: 610 mm
Boiler overpressure: 6/8 bar
Grate area: 0.86 / 09.3 m²
Evaporation heating surface: 79.90 / 74.50 m²
Tender: 3 T 4.2 / 5
Water supply: 4.2 / 5.0 m³

Bavarian BI were locomotives of the Royal Bavarian State Railways .

The BI series was developed in parallel to the A II series , but had a coupling axle instead of the second running axle. This also gave her a higher pulling power. The boiler was of the Stephenson Longboiler type . It also had a fork frame and a Stephenson external control with external cylinders. The coupling rods were made according to the American model. Many locomotives were later equipped with a Crampton type boiler .

They were with a Tender equipped to type 3 T 4.2, later 3 T 5th

Individual evidence

  1. ^ A b Günther Scheingraber German Railways - Type sketches and sections; Volume 3 - Locomotives and wagons of the Royal Bavarian State Railways ; 1968, Franckh'sche Verlagsbuchhandlung, W. Keller & Co. , Stuttgart