Moscow & Kazan Articulated Locomotives in Russia

Class Details by Steve Llanso of Sweat House Media

Class II/Fita (Locobase 2516)

Adopted to add adhesive weight on light rail lines, these were heavy freight examples based on Anatole Mallet's articulated locomotive design. Although low-drivered, their outsized cabs, tall, dustbin-shaped steam dome, and cabbage stacks (used to catch sparks that would otherwise set the woods around afire) reduced their apparent size. They were successful and soon adopted by other Russian railroads such as the Trans-Siberian. (Reder, 1974, pl 330))

Robert Hendry's "Russian Railways Group" article -- from [], accessed 19 March 2005 -- credits the design with a 1,250 tonnage rating up the ruling grade of 1.3%.

Data from the table presented on pages 386 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).

Principal Dimensions by Steve Llanso of Sweat House Media

Locobase ID2516
RailroadMoscow & Kazan
Number in Class100
Road Numbers
Number Built100
Valve GearHeusinger-Wals
Locomotive Length and Weight
Driver Wheelbase (ft / m) 8.86 / 2.70
Engine Wheelbase (ft / m)26.25 / 8
Ratio of driving wheelbase to overall engine wheelbase 0.34
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)
Weight on Drivers (lbs / kg)179,677 / 81,500
Engine Weight (lbs / kg)179,677 / 81,500
Tender Loaded Weight (lbs / kg)102,074 / 46,300
Total Engine and Tender Weight (lbs / kg)281,751 / 127,800
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)50 / 25
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)48 / 1220
Boiler Pressure (psi / kPa)174 / 12
High Pressure Cylinders (dia x stroke) (in / mm)18.7" x 25.59" / 475x650
Low Pressure Cylinders (dia x stroke) (in / mm)27.95" x 25.59" / 710x650
Tractive Effort (lbs / kg)38,094 / 17279.17
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.72
Heating Ability
Tubes (number - dia) (in / mm)234 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)16.31 / 4.97
Firebox Area (sq ft / m2)150.64 / 14
Grate Area (sq ft / m2)26.68 / 2.48
Evaporative Heating Surface (sq ft / m2)2171 / 201.80
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)2171 / 201.80
Evaporative Heating Surface/Cylinder Volume266.89
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4642
Same as above plus superheater percentage4642
Same as above but substitute firebox area for grate area26,211
Power L12240
Power MT164.91

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