Bavarian BB I

Bavarian BB I

Number(s)	Bavaria: 2100
Quantity	1
Retired	1924
Wheel arrangement	0-4-4-0
Axle arrangement	B′B n4v
Gauge	1,435 mm (4 ft 8 ¹⁄₂ in)
Length over buffers	16,991–17,894 mm
Service weight	55.6 t
Adhesive weight	55.6 t
Axle load	14.2 t
Top speed	45/65 km/h
Driving wheel diameter	1,340 millimetres (4 ft 4.76 in)
No. of cylinders	4
LP cylinder bore	635 mm (25.00 in)
HP cylinder bore	415 mm (16.34 in)
Piston stroke	630 mm (24.80 in)
Boiler Overpressure	14 bar (1.40 MPa; 203 psi)
Grate area	2.07 m² (22.3 sq ft)
Evaporative heating area	123.00 m² (1,324.0 sq ft)
Tender	Bavarian 3 T 13,8 2'2' T 18
Water capacity	13.8/18.0 m³

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.

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Classes of Bavarian locomotive and railcars

Early locomotives	Adler Jupiter and Juno Vesta and Venus Vulkan and Mars Merkur and Diana A I A II A III A IV A V B I B II B III B IV B V B V (artic) C I C II

Passenger and express train locomotives	B VI B VII B VIII B IX (old) B IX B X B XI Zw B XI Vbd C V AA I S 2/5 (Vauclain) S 2/5 S 2/6 S 3/5 N S 3/5 H S 3/6 P 2/4 P 3/5 N P 3/5 H

Goods train locomotives	C II C III C IV Zw C IV Vbd C VI E I E I (Vauclain) BB I G 3/4 N G 3/4 H G 4/5 N G 4/5 H G 5/5

Tank locomotives	D I D II D II (old) D III D IV D V D IX D XII Pt 2/3 Pt 2/4 N Pt 2/4 H Pt 2/5 N Pt 2/5H Pt 3/6 Gt 2x4/4 R 3/3 R 4/4

Branch line locomotives	D VI D VII D VIII D X D XI BB II PtL 2/2 (Maffei) PtL 2/2 (Krauss) PtL 3/3 PtL 3/4 PtzL 3/4 GtL 4/4 (GtL 4/5 - DRG 98.10) (GtL 4/5 - DRG 98.11)

Narrow gauge locomotives	LE Pts 3/4 Gts 4/4 Gts 2x3/3

Electric locomotives	ES 1 EP 1 EP 2 EP 3 EP 4 EP 5 EG 1 EG 2 EG 3 (EG 4) (EG 5)

Railbuses	MCi MBCi MCCi MBCL MPL D4ieIT (D4ieIT variant - DRG ET 85)

Bavarian Ostbahn locomotives	A 1 – A 12 A 13 – A 24 A 1 – A 2 B 1 – B 66 B 67 – B 78 B 79 – B 90 B 91 – B 96 B 97 – B 109 C 1 – C 12 C 13 – C 64 D 1 – D 12 C 13 – C 14

Royal Bavarian State Railways

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Bavarian BB I

See also

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