Russian State 4-4-0 Locomotives in Russia


Class Details by Steve Llanso of Sweat House Media

Class Series P (R) (Locobase 1474)

Data and information from Reder (1974, p. 207); additional data from the table presented on pages 370, 372 of the Groupe VI. - Genie 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 ([link], Accessed 21 August 2005); and Gustav Reder, The World of Steam Locomotives ( ), p. .. See also "Exposition de 1900 -- Le Locomotives a l'Exposition de 1900, Locomotive a grande vitesse - compound - tandem ...", Le Genie Civil, Volume XXXVIII, No 6, Whole no 965 (8 December 1900), pp. 85-89; and "Locomotives For Russian State Railways", Engineering, Volume 70 (9 November 1900), pp. 597, 602.

These were tandem compounds, the LP cylinders set up behind the HP and were very similar to the Hungarian Category 1es. All four were served by piston valves. Unlike the Hungarian engines, however, the Ps had two large, cylindrical steam domes that flanked a small sand dome. Putilov rated the engines as capable of pulling a passenger train of 200 tons up a 1 in 125 (0.8%) grade at 20 mph (32 kph).

Photographs in the Genie Civil report of 8 December 1900 show a white engine with lineaments outlining every connection. Such detailing chopped up the profile and emphasized the awkward proportions of large domes, HP and LP cylinders, and broad, roughly made plate frame segments.

The class served the St Petersburg-Warsaw run as well as the Trans-Siberian.

Reder adds:"They really brought to a close the use of 4-4-0 engines in Russia ...As in Italy, the 2-6-0 was preferred because of its higher adhesion weight -- a factor that mattered more in Russia owing to snow and ice than to sharp inclines."

Principal Dimensions by Steve Llanso of Middle Run Media
ClassSeries P (R)
Locobase ID1474
RailroadRussian State
CountryRussia
Whyte4-4-0
Number in Class67
Road Numbers
Gauge5'
Number Built67
BuilderPutilov
Year1898
Valve GearHeusinger
Locomotive Length and Weight
Driver Wheelbase (ft / m) 9.84 / 3
Engine Wheelbase (ft / m)24.61 / 7.50
Ratio of driving wheelbase to overall engine wheelbase 0.40
Overall Wheelbase (engine & tender) (ft / m)33.76 / 10.29
Axle Loading (Maximum Weight per Axle) (lbs / kg)33,069 / 15,000
Weight on Drivers (lbs / kg)66,139 / 30,000
Engine Weight (lbs / kg)124,561 / 56,500
Tender Loaded Weight (lbs / kg)77,162 / 35,000
Total Engine and Tender Weight (lbs / kg)201,723 / 91,500
Tender Water Capacity (gals / ML)
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT) 5.50 / 5
Minimum weight of rail (calculated) (lb/yd / kg/m)55 / 27.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)78.70 / 2000
Boiler Pressure (psi / kPa)174 / 1200
High Pressure Cylinders (dia x stroke) (in / mm)14.37" x 24.02" / 365x610
Low Pressure Cylinders (dia x stroke) (in / mm)21.54" x 24.02" / 547x610
Tractive Effort (lbs / kg)12,901 / 5851.80
Factor of Adhesion (Weight on Drivers/Tractive Effort) 5.13
Heating Ability
Tubes (number - dia) (in / mm)216 - 1.969" / 50
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)12.86 / 3.92
Firebox Area (sq ft / m2)147.47 / 13.70
Grate Area (sq ft / m2)27.99 / 2.60
Evaporative Heating Surface (sq ft / m2)1573 / 146.18
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)1573 / 146.18
Evaporative Heating Surface/Cylinder Volume348.87
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation4870
Same as above plus superheater percentage4870
Same as above but substitute firebox area for grate area25,660
Power L15205
Power MT347.00

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