Finnish State 2-10-0 Locomotives in Finland


Class Details by Steve Llanso of Sweat House Media

Class Tr2 (Locobase 13858)

Data from Baldwin Locomotive Works Negative 13269 offered for sale with views, last accessed 12 February 2012. Baldwin built the first 10 (works numbers were 73227-73235 in 1946) and Alco-Schenectady completed the order in 1947.

Of the thousands of Decapods that were ordered by the Russian government and the Soviet government 25 years later, this set of 20 was diverted to Finland in 1946-1947 as US-Soviet relations deteriorated. A noticeable detail difference was the provision of a larger sandbox than those typically found on Soviet engines.

Known as "Trumans", the class served the VR for 25 years. They were powerful, low-speed engines that were rated at 65 km/h (40 mph)

Principal Dimensions by Steve Llanso of Sweat House Media

ClassTr2
Locobase ID13858
RailroadFinnish State
CountryFinland
Whyte2-10-0
Number in Class20
Road Numbers1300-1319
Gauge5'
Number Built20
Builderseveral
Year1946
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)18.67 / 5.69
Engine Wheelbase (ft / m)27.83 / 8.48
Ratio of driving wheelbase to overall engine wheelbase 0.67
Overall Wheelbase (engine & tender) (ft / m)61.37 / 18.71
Axle Loading (Maximum Weight per Axle) (lbs / kg)38,500 / 17,463
Weight on Drivers (lbs / kg)192,500 / 87,317
Engine Weight (lbs / kg)219,000 / 99,337
Tender Loaded Weight (lbs / kg)149,000 / 67,585
Total Engine and Tender Weight (lbs / kg)368,000 / 166,922
Tender Water Capacity (gals / ML)7400 / 28.03
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)14.30 / 13
Minimum weight of rail (calculated) (lb/yd / kg/m)64 / 32
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)52 / 1321
Boiler Pressure (psi / kPa)180 / 12.40
High Pressure Cylinders (dia x stroke) (in / mm)25" x 28" / 635x711
Tractive Effort (lbs / kg)51,490 / 23355.50
Factor of Adhesion (Weight on Drivers/Tractive Effort) 3.74
Heating Ability
Tubes (number - dia) (in / mm)162 - 2" / 51
Flues (number - dia) (in / mm)35 - 5.375" / 137
Flue/Tube length (ft / m)16.75 / 5.11
Firebox Area (sq ft / m2)227 / 21.09
Grate Area (sq ft / m2)64.60 / 6
Evaporative Heating Surface (sq ft / m2)2467 / 229.19
Superheating Surface (sq ft / m2)685 / 63.64
Combined Heating Surface (sq ft / m2)3152 / 292.83
Evaporative Heating Surface/Cylinder Volume155.08
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation11,628
Same as above plus superheater percentage14,186
Same as above but substitute firebox area for grate area49,849
Power L19578
Power MT548.46

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