Bavarian BB I

Specifications
Specifications
Configuration:;
• Whyte	0-4-4-0
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Driver dia.	1,340 millimetres (4 ft 4+3⁄4 in)
Length:;
• Over beams	16,991 or 17,894 mm (55 ft 9 in or 58 ft 8+1⁄2 in)
Axle load	14.2 t (14.0 long tons; 15.7 short tons)
Adhesive weight	55.6 t (54.7 long tons; 61.3 short tons)
Service weight	55.6 t (54.7 long tons; 61.3 short tons)
Water cap.	13.8 or 18.0 m3 (3,000 or 4,000 imp gal; 3,600 or 4,800 US gal)
Boiler pressure	14 kgf/cm2 (1.37 MPa; 199 psi)
Heating surface:
• Firebox	2.07 m2 (22.3 sq ft)
• Evaporative	123.00 m2 (1,324.0 sq ft)
Cylinders	4
High-pressure cylinder	415 mm (16+5⁄16 in)
Low-pressure cylinder	635 mm (25 in)
Piston stroke	630 mm (24+13⁄16 in)

Type and origin
Type and origin
Builder	Maffei
Build date	1896
Total produced	1

Bavarian BB I
Bavarian BB I
Builder
Type and origin
Builder	Maffei
Build date	1896
Total produced	1
Configuration:;
Specifications
Configuration:;
• Whyte	0-4-4-0
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Driver dia.	1,340 millimetres (4 ft 4+3⁄4 in)
Length:;
• Over beams	16,991 or 17,894 mm (55 ft 9 in or 58 ft 8+1⁄2 in)
Axle load	14.2 t (14.0 long tons; 15.7 short tons)
Adhesive weight	55.6 t (54.7 long tons; 61.3 short tons)
Service weight	55.6 t (54.7 long tons; 61.3 short tons)
Water cap.	13.8 or 18.0 m3 (3,000 or 4,000 imp gal; 3,600 or 4,800 US gal)
Boiler pressure	14 kgf/cm2 (1.37 MPa; 199 psi)
Heating surface:
• Firebox	2.07 m2 (22.3 sq ft)
• Evaporative	123.00 m2 (1,324.0 sq ft)
Cylinders	4
High-pressure cylinder	415 mm (16+5⁄16 in)
Low-pressure cylinder	635 mm (25 in)
Piston stroke	630 mm (24+13⁄16 in)
Maximum speed
Performance figures
Maximum speed	45 or 65 km/h (28 or 40 mph)
Numbers
Career
Numbers	Bavaria: 2100
Retired	1924

The BB I was a steam locomotive with the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn).

This one-off loco would have been given the operating number 55 7101 by the Reichsbahn in their initial renumbering plan, but in the final one it did not appear as it had been retired in 1924. It can be seen in section today in the Nuremberg Transport Museum.

The engine was initially equipped with a Bavarian 3 T 13,8 tender, later replaced by a Class 2'2' T 18.

Bavarian BB I

See also