Bavarian A I

Bavarian A I engines were German steam locomotives in service with the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn) from 1841 to 1871.

Bavarian A I
Numbering:	Names, Inventory nos. 1–24	DER MÜNCHNER, Inventory no. 25
Quantity:	24	1
Manufacturers:	Kessler, Maffei, Meyer	Maffei
Years of manufacture:	1844–1845	1841
Retired:	1874	1871
Wheel arrangement:	2-2-2
Axle arrangement:	1A1 n2
Gauge:	1,435 mm
Length over buffers:	9,739 mm
Service weight:	15.0/20.5 t	13.8 t
Adhesive Weight:	7.5 t	6.8
Top speed:	40 km/h	59 km/h
Indicated Power:		75 kW
Driving wheel diameter:	1,524 mm
Leading wheel diameter:	915 mm
Trailing wheel diameter:	915 mm
No. of cylinders:	2
Cylinder bore:	318 mm	305 mm
Piston stroke:	559 mm	457 mm
Boiler overpressure.	6.3 bar	6 bar
Grate area:	0.72–0.83 m²	0.93 m²
Evaporative heating area:	71.00 m²	46.00 m²
Tender:	2 T 3.35	2 T 3
Water Capacity:	3.35 m³	3.0 m³

Three manufacturers were awarded a contract to build eight locomotives each, with the stipulation that the components of the different machines had to be interchangeable with one another. The engines achieved a speed of 33 km/h on a line with an incline of 1:200. The first engine was retired in 1871 and scrapped. Five other examples were rebuilt into B 1 locomotives and four were sold. The last one was scrapped in 1874.

They were coupled with 2 T 3,35 tenders.

Der Münchner

Der Münchner (a Münchner is a man from Munich) was a Bavarian Class A I engine with the number 25. It was originally built for a private railway company which ran the route between Munich and Augsburg. In 1844 the line was taken over by the state railway and the engine was transferred into state ownership. A large part of the locomotive came from England, which can be seen from the typically English 'pear' shape of the outer firebox.

It was coupled with a 2 T 3 tender.

See also

• List of Bavarian locomotives and railbuses