Bavarian A III

Bavarian A III
Number(s)	Names and inventory nos.
Quantity	4
Manufacturer	Maffei
Year(s) of manufacture	1851-1852
Retired	by 1871 (converted)
Wheel arrangement	2-2-2
Axle arrangement	1A1 n2
Gauge	1,435 mm (4 ft 8 ¹⁄₂ in)
Length over buffers	11,290 mm
Service weight	21.8 t
Top speed	50 km/h
Driving wheel diameter	1,425 mm
Leading wheel diameter	915 mm
Trailing wheel diameter	915 mm
No. of cylinders	2
Cylinder bore	356 mm
Piston stroke	559 mm
Boiler Overpressure	6 bar
Grate area	0.98 m²
Evaporative heating area	60.81 m²
Tender	2 T 4,2/5
Water capacity	4.2/5.0 m³

The Bavarian A III 2-2-2 engines were German steam locomotives in service with the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn).

Once again these engines were used to experiment with a short boiler and Meyer expansion valve gear. Because the additional increase in size of the heating area could not be improved by installing extra tubes, two of each were rebuilt to 0-4-2 and 0-6-2 locomotives. Otherwise their construction was the same as the Class A II engines.

They were equipped with 2 T 4.2 and, following the rebuild, 2 T 5 tenders.

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	Krauss railmotor 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 A III

See also