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Badenian VIII c
Germany | 1893 | 32 produced
No. 632 on a builder's photo of Esslingen machine factory
No. 632 on a builder's photo of Esslingen machine factory

When a powerful freight locomotive was being searched that could still negotiate curves on the Black Forest Railway, Grafenstaden had the Class VIII c designed after the Mallet design. Only two pre-series locomotives were manufactured there, the production of all others was taken over by MBG Karlsruhe and Maschinenfabrik Esslingen.

Although the ability to negotiate curves was good, the rear axles, which were fixed in the frame, could hardly offer sufficient directional stability for the front bogie that could be shifted laterally due to their short wheel base. In addition to the tendency to slip, which was already present in mallet locomotives, the running smoothness was insufficient. Furthermore, due to the special construction of the running gear, the boiler was somewhat smaller than in comparable standard-design locomotives, which meant that the machines did not achieve the power of the classes VIII a and VIII b despite their greater weight.

Nevertheless, series production was ordered, and so twelve engines were built in Karlsruhe in 1895 and another 18 in Esslingen in 1899/1900. After the war, eight engines came to France and one to Belgium. The locomotives remaining in Germany were retired by 1925, which is why they were not re-designated as class 5561.

Variantpilot seriesseries
General
Built18931895, 1899-19000
ManufacturerGrafenstadenMBG Karlsruhe, Esslingen
Axle config0-4-4-0 (Four Coupled Mallet) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length54 ft 11 13/16 in
Wheelbase19 ft 0 3/8 in
Fixed wheelbase5 ft 8 7/8 in
Empty weight113,758 lbs
Service weight127,427 lbs
Adhesive weight127,427 lbs
Total weight203,046 lbs
Axle load31,857 lbs
Water capacity3,566 us gal3,698 us gal
Fuel capacity8,818 lbs (coal)
Power
Power sourcesteam
Estimated power671 hp (500 kW)704 hp (525 kW)
Optimal speed37 mph35 mph
Top speed28 mph
Starting effort11,672 lbf12,645 lbf
with start valve14,006 lbf15,174 lbf
Power Plant
Driver diameter49.6 in
Boiler pressure174 psi188 psi
Expansion typecompound
Cylinderstwo, HP: 15 3/8 x 23 5/8 in
and LP: 23 5/8 x 23 5/8 in
Boiler
Grate area21.1 sq ft20.8 sq ft
Firebox area111.7 sq ft104 sq ft
Tube heating area1,348 sq ft
Evaporative heating area1,459.7 sq ft1,451.9 sq ft
Total heating area1,459.7 sq ft1,451.9 sq ft
Calculated Values
steam locomotive
freight
Mallet
last changed: 01/2022
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