Bavarian B III

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

Bavarian B III
Type and origin
Builder
Build date1852–1855
Total produced18
Specifications
Configuration:
​
 • Whyte2-4-0
Gauge1,435 mm (4 ft 8+1⁄2 in)
Leading dia.915 mm (3 ft 0 in)
Driver dia.1,448–1,470 mm (4 ft 9 in – 4 ft 9+7⁄8 in)
Length:
​
 • Over beams13,905–14,045 mm (45 ft 7+1⁄2 in – 46 ft 1 in)
Axle load10.4–11.6 t (10.2–11.4 long tons; 11.5–12.8 short tons)
Adhesive weight20.9–23.3 t (20.6–22.9 long tons; 23.0–25.7 short tons)
Service weight30.1–33.2 t (29.6–32.7 long tons; 33.2–36.6 short tons)
Water cap.5.0 m3 (1,100 imp gal; 1,300 US gal)
BoilerCrampton
Boiler pressure
  • 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)
Heating surface:
 • Firebox		1.24 m2 (13.3 sq ft)
 • Evaporative101.10 m2 (1,088.2 sq ft)
Cylinders2
Cylinder size406 mm (16 in)
Piston stroke610 mm (24 in)
Performance figures
Maximum speed70 km/h (43 mph)
Career
Retired1897

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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