Bavarian A I

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Bavarian A I
Numbering: Names,
Inventory nos. 1–24
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

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

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[edit]

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.

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