Data from Markku Karvonen's personal.inet.fi/koti/markku.karvonen/prk/vanha3.htm (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 Middle Run Media | |
|---|---|
| Class | O1 / Vr3 - Kukko |
| Locobase ID | 5648 |
| Railroad | Suomen valtionrautatiet (VR) |
| Country | Finland |
| Whyte | 0-10-0T |
| Number in Class | 5 |
| Road Numbers | 752-756 |
| Gauge | 5' |
| Number Built | 5 |
| Builder | several |
| Year | 1924 |
| Valve Gear | Walschaert |
| 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 / 1200 |
| 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 Volume | 112.09 |
| Computations Relating to Power Output (More Information) | |
| Robert LeMassena's Power Computation | 3967 |
| Same as above plus superheater percentage | 4919 |
| Same as above but substitute firebox area for grate area | |
| Power L1 | |
| Power MT | |