Bavarian A III - Misplaced Pages

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Bavarian A III

Type and origin
Builder	Maffei
Build date	1851-1852
Total produced	4

Specifications
Configuration:
• Whyte	2-2-2
Gauge	1,435 mm (4 ft 8+1⁄2 in)
Leading dia.	915 mm (3 ft 0 in)
Driver dia.	1,425 mm (4 ft 8+1⁄8 in)
Trailing dia.	915 mm (3 ft 0 in)
Length:
• Over beams	11,290 mm (37 ft 1⁄2 in)
Service weight	21.8 t (21.5 long tons; 24.0 short tons)
Water cap.	4.2 or 5.0 m (920 or 1,100 imp gal; 1,100 or 1,300 US gal)
Boiler pressure	6 kgf/cm (588 kPa; 85.3 lbf/in)
Heating surface:
• Firebox	0.98 m (10.5 sq ft)
• Evaporative	60.81 m (654.6 sq ft)
Cylinders	2
Cylinder size	356 mm (14 in)
Piston stroke	559 mm (22 in)

Performance figures
Maximum speed	50 km/h (31 mph)

Career
Numbers	Names and inventory nos.
Retired	by 1871 (converted)

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.

v t e 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 2×4/4 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 D 13 – D 14
Royal Bavarian State Railways

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See also