The RüKB Nos. 51Mh–53Mh were German narrow gauge steam locomotives operated by the Rügen narrow gauge railway on the island of Rügen in the Baltic Sea. They were absorbed in 1949 into the Deutsche Reichsbahn in East Germany as their Class 99.463.
Quick Facts Lenz Class M, MhRüKB 51Mh–53Mh Class 99.463, Type and origin ...
Lenz Class M, Mh RüKB 51Mh–53Mh Class 99.463 |
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Specifications |
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Configuration:
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• Whyte | 0-8-0 |
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• German | K 44.6 |
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Gauge | 750 mm (2 ft 5+1⁄2 in) |
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Driver dia. | 850 mm (33.46 in) |
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Coupled dia. | 850 mm (33.46 in) |
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Wheelbase: | |
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• Overall | 3,400 mm (11 ft 1+7⁄8 in), 3,450 mm (11 ft 3+7⁄8 in) * |
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Length:
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• Over beams | 7,724 mm (25 ft 4+1⁄8 in); 8,000 mm (26 ft 3 in) * |
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Width | 2,200 mm (7 ft 2+5⁄8 in) |
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Height | 3,150 mm (10 ft 4 in); 3,200 mm (10 ft 6 in) * |
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Empty weight | 18.5 t (18.2 long tons; 20.4 short tons); 20.5 t (20.2 long tons; 22.6 short tons) * |
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Service weight | 23.5 t (23.1 long tons; 25.9 short tons); 25.5 t (25.1 long tons; 28.1 short tons) * |
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Fuel capacity | 0.8 t (0.79 long tons; 0.88 short tons) coal |
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Water cap. | 2.2 m3 (78 cu ft) |
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Boiler pressure | 12 bar (1,200 kPa; 174 psi) |
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Heating surface: | |
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• Firebox | 0.90 m2 (9.7 sq ft) |
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• Radiative | 3.52 m2 (37.9 sq ft) |
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• Evaporative | 46.7 m2 (503 sq ft) 33.77 m2 (363.5 sq ft) |
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Superheater:
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• Heating area | 13.03 m2 (140.3 sq ft) * |
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Cylinders | 2 |
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Cylinder size | 350 mm (13.78 in) |
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Piston stroke | 400 mm (15.75 in) |
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Valve gear | Heusinger with lifting link, Gegenkurbel voreilend |
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Performance figures |
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Maximum speed | 30 km/h (19 mph) |
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Indicated power | 200 PS (147 kW; 197 hp) 235 PS (173 kW; 232 hp) * |
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Tractive effort:
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• Starting | 40.69 kN (9,150 lbf) |
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Career |
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Numbers | RüKB 51Mh–53Mh DR 99.4631–4633 |
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* 99 4633 |
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