Bavarian B III

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)BoilerCramptonBoiler 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: • Firebox1.24 m² (13.3 sq ft) • Evaporative101.10 m² (1,088.2 sq ft)Cylinders2Cylinder size406 mm (16 in)Piston stroke610 mm (24 in)

Performance figures
Maximum speed	70 km/h (43 mph)

Career
Retired	1897

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

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.