Bavarian B I

Bavarian B I
Type and origin Build date 1847ff.
Specifications Configuration: ​  • Whyte 2-4-0 Gauge 1,435 mm (4 ft 8+1⁄2 in) Leading dia. 915 mm Driver dia. 1,372/1,400 mm Length: ​  • Over buffers 12,585/13,670 mm Axle load 8.5/8.7 t Adhesive weight 17.1/17.4 t Service weight 24.8/26.0 t Tender type 3 T 4.2/5 Water cap. 4.2/5.0 m3 Firebox: ​  • Grate area 0.86/0.93 m2 Boiler pressure 6/8 bar Heating surface 79.90/74.50 m2 Cylinders 2 Cylinder size 381 mm Piston stroke 610 mm
Performance figures Maximum speed 65 km/h
Career Retired 1896

Bavarian B I engines were 2-4-0 steam locomotives of the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn).

The Class B I was developed in parallel with the Class A II, but had a coupled axle instead of a second carrying axle. As a result, it developed a higher tractive effort. It also had a Stephenson Long Boiler, forked frame and an outside Stephenson valve gear with outside cylinders. The coupling rods were based on an American prototype. Later many of the engines were fitted with a Crampton boiler.

They were coupled to 3 T 4.2, and later 3 T 5, tenders.

See also

• List of Bavarian locomotives and railbuses