Bavarian B III

Bavarian B IIIs were steam locomotives of the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn).

Bavarian B III
Quantity18
Manufacturer
Year(s) of manufacture1852–1855
Retired1897
Wheel arrangement2-4-0
Axle arrangement1B n2
Track gauge1,435 mm (4 ft 8 12 in)
Length over buffers13,905–14,045 mm (45 ft 7 12 in–46 ft 1 in)
Service weight30.1–33.2 t (29.6–32.7 long tons; 33.2–36.6 short tons)
Adhesive weight20.9–23.3 t (20.6–22.9 long tons; 23.0–25.7 short tons)
Axle load10.4–11.6 t (10.2–11.4 long tons; 11.5–12.8 short tons)
Top speed70 km/h (43 mph)
Driving wheel diameter1,448–1,470 mm (4 ft 9 in–4 ft 9 78 in)
Leading wheel diameter915 mm (3 ft 0 in)
No. of cylinders2
Cylinder bore406 mm (16 in)
Piston stroke610 mm (24 in)
BoilerCrampton
Boiler Overpressure
  • 7 kgf/cm2 (686 kPa; 99.6 lbf/in2) or
  • 8 kgf/cm2 (785 kPa; 114 lbf/in2) or
  • 10 kgf/cm2 (981 kPa; 142 lbf/in2)
Grate area1.24 m2 (13.3 sq ft)
Evaporative heating area101.10 m2 (1,088.2 sq ft)
Tender3 T 5
Water capacity5.0 m3 (1,100 imp gal; 1,300 US gal)

Eight examples were delivered by Maffei in 1852; the remainder came from Hartmann. The machines by Hartmann had great similarity to those of the Class A IV, which were manufactured at the same time. Unlike the Hartmann engines, these locomotives also had a steam dome. This was later added to the Hartmann variants. All the engines had a Crampton boiler with smooth tubes and a Kirchweger condenser.

They were equipped with a 3 T 5 tender.

See also

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