Russian State railways 0-8-0 Locomotives in Russia

Class Details by Steve Llanso of Sweat House Media

Class Od (Locobase 4239)

See [] for the history, data from the table presented on pages 375, 377 of the Groupe VI. - GTnie civil. - Moyens de transport. DeuxiFme partie. Classes 32 (Tome I), part of the series of Rapports du Jury Internationale of the Exposition Unverselle Internationale de 1900 Paris Exposition, hosted on the website of Le Conservatoire numTrique des Arts & MTtiers ([], Accessed 21 August 2005).

BMZ's (Bryansk Engineering Works) online history says these cross-compound engines were nicknamed "Ovechka" ("Sheep" or "Lamb") and were "...the beloved engine of the old railroadmen. Sometime used in extreme conditions, 'O' was unpretentious and faultless, like the most reliable horse."

According to the BMZ history, Od, a modification of the original design, was produced from 1897 to 1902.

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID4239
RailroadRussian State railways
Number in Class9000
Road Numbers
Number Built9000
Valve GearJoy
Locomotive Length and Weight
Driver Wheelbase (ft / m)12.76 / 3.89
Engine Wheelbase (ft / m)12.76 / 3.89
Ratio of driving wheelbase to overall engine wheelbase1
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)115,743 / 52,500
Engine Weight (lbs / kg)115,743 / 52,500
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)48 / 24
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)47.20 / 1200
Boiler Pressure (psi / kPa)163.90 / 11.30
High Pressure Cylinders (dia x stroke) (in / mm)19.69" x 25.59" / 500x650 (1)
Low Pressure Cylinders (dia x stroke) (in / mm)28.74" x 25.59" / 730x650 (1)
Tractive Effort (lbs / kg)19,929 / 9039.65
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.81
Heating Ability
Tubes (number - dia) (in / mm)190 - 2.008" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)15.29 / 4.66
Firebox Area (sq ft / m2)115.17 / 10.70
Grate Area (sq ft / m2)19.91 / 1.85
Evaporative Heating Surface (sq ft / m2)1643 / 152.60
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1643 / 152.60
Evaporative Heating Surface/Cylinder Volume364.36
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3263
Same as above plus superheater percentage3263
Same as above but substitute firebox area for grate area18,876
Power L12978
Power MT226.89

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