Suomen valtionrautatiet 0-10-0 Locomotives in Finland

Class Details by Steve Llanso of Sweat House Media

Class O1 / Vr3 - Kukko (Locobase 5648)

Data from Markku Karvonen's (visited 29 March 2003).

Hannover delivered the prototype in 1924. Tampella added the other 4 in 1926.

The last of this class was retired in the 1970s. Ron Ziel, in Ziel & Eagleson (1973) comments "One of the exciting sights on cold ...clear November 5, 1970 was to observe Finnish engineers racing these shunters from one end of the yard [in Kouvola] to the other at perhaps 50 miles per hour, as if furiously seeking out more Russian boxcars to kick around!"

Principal Dimensions by Steve Llanso of Sweat House Media

ClassO1 / Vr3 - Kukko
Locobase ID5648
RailroadSuomen valtionrautatiet (VR)
Number in Class5
Road Numbers752-756
Number Built5
Valve GearWalschaert
Locomotive Length and Weight
Driver Wheelbase (ft / m)
Engine Wheelbase (ft / m)
Ratio of driving wheelbase to overall engine wheelbase
Overall Wheelbase (engine & tender) (ft / m)
Axle Loading (Maximum Weight per Axle) (lbs / kg)34,833 / 15,800
Weight on Drivers (lbs / kg)171,740 / 77,900
Engine Weight (lbs / kg)171,740 / 77,900
Tender Loaded Weight (lbs / kg)
Total Engine and Tender Weight (lbs / kg)171,740 / 77,900
Tender Water Capacity (gals / ML)1584 / 6
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)
Minimum weight of rail (calculated) (lb/yd / kg/m)57 / 28.50
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)50 / 1270
Boiler Pressure (psi / kPa)174 / 12
High Pressure Cylinders (dia x stroke) (in / mm)22.44" x 25.59" / 570x650
Tractive Effort (lbs / kg)38,117 / 17289.60
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.51
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)22.80 / 2.12
Evaporative Heating Surface (sq ft / m2)1313 / 122.03
Superheating Surface (sq ft / m2)409 / 38.01
Combined Heating Surface (sq ft / m2)1722 / 160.04
Evaporative Heating Surface/Cylinder Volume112.09
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation3967
Same as above plus superheater percentage4919
Same as above but substitute firebox area for grate area
Power L1
Power MT

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Wes Barris