Donetz 2-4-0 Locomotives in Russia

Class Details by Steve Llanso of Sweat House Media

Class A1 (Locobase 21049)

Data from "2/3 gek. Personenzug-lokomotive fur Russiche Spurweite", Locomotiven, A Borsig (Tegel bei Berlin, 1898), archived on Historical Railway Images, Flickr, at [], p. 3, last accessed 11 July 2022. See also "The Locomotive Engine Works of A Borsig at Berlin", abstracted from Glaser's Annalen fu r Gewerbe und Bauwesen, No. 224, October 1885, p. 143) and published in Minutes of Proceedings of the Institution of Civil Engineers, Volume 68 (United Kingdom: The Institution, 1887). pp. 494-495.Works numbers were 3600-3610 in 1878.

A remarkable fact about the builders is reflected, mirror-like, in the order for these eleven six-wheel passenger engines for the Donetz (then Russian, more recently Ukraine). A note that claimed that as of 1879, Borsig had delivered 3,709 locomotives. Perhaps not surprisingly, 3/4s of the total-2,845--went to German or Prussian operators. But more important for the current entry, the second greatest number--718 engines--were delivered to Russian customers. (About 130 others went to other European buyers.)

Compared to other standard or broad-gauge 2-4-0s, this design presented a somewhat larger grate, most likely to handle the relative low-calorie coal.

Locobase isn't sure if the Borsig share of total sales to Russia was the greatest of any single builder, but it seems likely.

Principal Dimensions by Steve Llanso of Middle Run Media

Locobase ID21049
Number in Class14
Road NumbersA1-A11
Number Built11
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)14.63 / 4.46
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)
Engine Weight (lbs / kg)74,957 / 34,000
Tender Loaded Weight (lbs / kg)50,706 / 23,000
Total Engine and Tender Weight (lbs / kg)125,663 / 57,000
Tender Water Capacity (gals / ML)2152 / 8.15
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 8.80 / 8
Minimum weight of rail (calculated) (lb/yd / kg/m)
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)63 / 1600
Boiler Pressure (psi / kPa)145 / 10
High Pressure Cylinders (dia x stroke) (in / mm)16.14" x 22.05" / 410x560
Tractive Effort (lbs / kg)11,237 / 5097.02
Factor of Adhesion (Weight on Drivers/Tractive Effort)
Heating Ability
Tubes (number - dia) (in / mm)
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)
Firebox Area (sq ft / m2)
Grate Area (sq ft / m2)18.51 / 1.72
Evaporative Heating Surface (sq ft / m2)1010 / 93.82
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1010 / 93.82
Evaporative Heating Surface/Cylinder Volume193.43
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation2684
Same as above plus superheater percentage2684
Same as above but substitute firebox area for grate area
Power L1
Power MT

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