Brienzer-Rothornbahn steam locomotives

All dimensions metric: lengths in mm, areas in m², weights in metric tons, pressures in atmospheres.

Class Axle
Arr. Rack
Dia. Cylinders
Dia. x Str. BP Dr
Wt EW
WO Grate
Area Evap
Surf. Sup.
Surf Remarks

1 B1'rt 573 300x550 14 12 17 0.7 37 none 1¹/₃ to 1 lever

1 B1'rt 573 300x550 14 12 17 0.7 30 7 Reboilered

6 B1'rt 573 300x400 14 13 19 0.8 30 7 2¼ to 1 gearing

12 B1'rt 573 280x400 16 11 16 0.8 27 10 2¼ to 1 gearing

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Class	Axle Arr.	Rack Dia.	Cylinders Dia. x Str.	BP	Dr Wt	EW WO	Grate Area	Evap Surf.	Sup. Surf	Remarks
1	B1'rt	573	300x550	14	12	17	0.7	37	none	1¹/₃ to 1 lever
1	B1'rt	573	300x550	14	12	17	0.7	30	7	Reboilered
6	B1'rt	573	300x400	14	13	19	0.8	30	7	2¼ to 1 gearing
12	B1'rt	573	280x400	16	11	16	0.8	27	10	2¼ to 1 gearing