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Saxon V V
German Reichsbahn class 536-7
Germany | 1885 | 164 produced
Die Lokomotive, April 1936

The V V was developed as the successor to the V, which had been in production since 1859, with the first V standing for the generic class "Roman five" and the second for the compound engine. These were six-coupled freight locomotives without carrying axles

The boiler was not perfectly circular in cross-section and was slightly narrower at the rear to accommodate the firebox within the frame. In keeping with the times, its pressure was increased by three to twelve bar compared to type V. Distinctive features of the boiler were the very high steam dome with a hemispherical ceiling on the second boiler section and the relatively high sand dome on the first. The valve gear was of the Allan type and was located within the frame. Initially, only a Heberlein brake was used as a brake, which was actuated by a cable pull. Some of the engines were later converted to Westinghouse air brakes.

By 1901, 164 pieces were made, some of which were built in Chemnitz and some in Vienna. A curiosity was an additional locomotive, which was built in 1920 with a boiler that was actually intended for the Turkish State Railways. It was thus created 61 years after the start of series production of the underlying model. It was a few tons heavier than its predecessors and a Westinghouse brake was installed ex works.

After the First World War, 14 engines came to Poland and were designated Th101 there, another eight were taken over by the Belgian State Railways. The Reichsbahn was able to include 130 class V V locomotives in its inventory and gave them the numbers from 53 601 to 53 751 with a few gaps. Their end of service overtook them in the following years, so that by 1930 all without exception had been scrapped. This also included the single engine manufactured later, which was less than ten years old.

Variant1885 variant1890 variant1898 variantsingle 1920 engine
General
Built1885-18901890-18961898-19011920
ManufacturerHartmann, Sigl
Axle config0-6-0 (Six-coupled) 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length48 ft 3 7/16 in
Wheelbase11 ft 1 7/8 in
Fixed wheelbase11 ft 1 7/8 in
Empty weight81,571 lbs82,673 lbs85,980 lbs91,492 lbs
Service weight91,712 lbs92,594 lbs96,342 lbs101,853 lbs
Adhesive weight91,712 lbs92,594 lbs96,342 lbs101,853 lbs
Axle load31,085 lbs31,306 lbs32,628 lbs34,502 lbs
Water capacity1,493 us gal1,981 us gal2,378 us gal
Fuel capacitycoal6,614 lbs (coal)
Power
Power sourcesteam
Estimated power402 hp (300 kW)469 hp (350 kW)
Optimal speed18 mph16 mph15 mph18 mph
Top speed28 mph
Starting effort14,184 lbf15,767 lbf16,535 lbf16,302 lbf
with start valve17,021 lbf18,920 lbf19,842 lbf19,562 lbf
Power Plant
Driver diameter54.7 in55.1 in55.9 in
Boiler pressure174 psi
Expansion typecompound
Cylinderstwo, HP: 18 1/8 x 24 in
and LP: 25 9/16 x 24 in
two, HP: 18 7/8 x 24 in
and LP: 27 9/16 x 24 in
two, HP: 19 11/16 x 24 in
and LP: 27 9/16 x 24 in
Boiler
Grate area15.2 sq ft19.4 sq ft
Firebox area88.3 sq ft82.9 sq ft
Tube heating area1,150.7 sq ft1,110.8 sq ft1,242.2 sq ft
Evaporative heating area1,238.9 sq ft1,199.1 sq ft1,325 sq ft
Total heating area1,238.9 sq ft1,199.1 sq ft1,325 sq ft
Calculated Values
steam locomotive
freight
last changed: 01/2022
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