Compare locomotives
Add a locomotive
Finnish Railway series K5 “Pikku-Jumbo”
The K5, also called “Pikku-Jumbo” (“Small Jumbo”), was the largest class of steam locomotives ever in use with the Finnish State Railways. It is also known by its new class designation Tk3 introduced in 1942. It was a...
General
| Property | Finnish Railway series K5 “Pikku-Jumbo”Remove |
|---|---|
| Built | 1927-1930, 1943-1948, 1953 |
| Manufacturers | Tampella, Lokomo, Frichs |
| Wheel arrangement | 2-8-0 (Consolidation) |
| Gauge | 1,520 mm (Russian broad gauge) |
Dimensions and weights
| Property | Finnish Railway series K5 “Pikku-Jumbo”Remove |
|---|---|
| Length | 16.00 m |
| Wheelbase | 6.98 m |
| Rigid wheelbase | 4.44 m |
| Service weight | 51.8 t |
| Adhesive weight | 43 t |
| Axle load | 10.7 t |
| Total weight | 78.2 t |
| Water capacity | 9,500 l |
| Fuel capacity | 4.5 t (wood) |
Boiler
| Property | Finnish Railway series K5 “Pikku-Jumbo”Remove |
|---|---|
| Grate area | 1.6 m² |
| Evaporative heating surface | 84.8 m² |
| Superheater surface | 26 m² |
| Total heating surface | 110.8 m² |
Power plant
| Property | Finnish Railway series K5 “Pikku-Jumbo”Remove |
|---|---|
| Driver diameter | 1,270 mm |
| Boiler pressure | 14 bar |
| Expansion type | simple expansion |
| Cylinders | two, 460 x 630 mm |
Power
| Property | Finnish Railway series K5 “Pikku-Jumbo”Remove |
|---|---|
| Power source | steam |
| Estimated power | 400 kW (544 PS) |
| Top speed | 60 km/h |
| Starting effort | 124.9 kN |
Calculated values
| Property | Finnish Railway series K5 “Pikku-Jumbo”Remove |
|---|---|
| Factor of adhesion | 1 : 3.38 |
| Optimal speed | 19 km/h |
| Power-to-weight ratio | 7.7 kW/t |
| Adhesive weight/Total | 1 : 1.20 |
| Tractive force/Heating surface | 1 : 23.55 |
| Grate area/Heating surface | 1 : 69.25 |
| Total/Superheater | 1 : 3.26 |
