| Bavarian B IV |
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| Type and origin |
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| Builder | |
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| Build date | 1852–1853 |
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| Total produced | 10 |
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| Specifications |
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Configuration:
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| • Whyte | 2-4-0 |
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| Gauge | 1,435 mm (4 ft 8+1⁄2 in) |
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| Leading dia. | 915 mm (3 ft 0 in) |
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| Driver dia. | 1,524 mm (5 ft 0 in) |
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Length:
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| • Over beams | 13,639 mm (44 ft 9 in) |
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| Axle load | 10.3 t (10.1 long tons; 11.4 short tons) |
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| Adhesive weight | 20.5 t (20.2 long tons; 22.6 short tons) |
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| Service weight | 28.0 t (27.6 long tons; 30.9 short tons) |
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| Water cap. | 5.0 m3 (1,100 imp gal; 1,300 US gal) |
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| Boiler pressure | 7 kgf/cm2 (686 kPa; 99.6 lbf/in2) |
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| Heating surface: | |
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| • Firebox | 1.30 m2 (14.0 sq ft) |
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| • Evaporative | 98.8–101.2 m2 (1,063–1,089 sq ft) |
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| Cylinders | 2 |
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| Cylinder size | 406 mm (16 in) |
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| Piston stroke | 610 mm (24 in) |
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| Performance figures |
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| Maximum speed | 70 km/h (43 mph) |
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Bavarian B IVs were early German steam locomotives with the Royal Bavarian State Railways (Königlich Bayerische Staatsbahn).
The six engines built by Kessler were trialled with a Kessler boiler. This had a pear-shaped cross section and could therefore be set lower down between the wheels. The same effect was also attempted on the machines from Hartmann by using two boilers: a lower boiler with a small diameter and a larger, upper boiler. After two boiler explosions occurred, all the engines were equipped with normal boilers. All the vehicles had a steam dome in the centre, and the overhanging outer firebox had a flat top on which there was a safety valve and a pump (Fahrpumpe) driven by the crossheads.
They had Bavarian 3 T 5 tenders.
See also
External links
