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Norwegian State Railways type 26
The Bergensbane, or Bergen Railway, connects Oslo with Bergen and, despite a large number of tunnels, has challenging gradients, so that the express trains at the beginning of the century had to rely on pilot locomoti...
| Norwegian State Railways type 26Remove | |
|---|---|
| Variant | |
| Built | 1911 |
| Manufacturers | Thunes |
| Wheel arrangement | 2D |
| Gauge | 1435 mm |
| Length | 17905 mm |
| Service mass | 65400 kg |
| Top speed | 70 km/h |
| Power | |
| Engine |
General
| Property | Norwegian State Railways type 26Remove |
|---|---|
| Built | 1911 |
| Manufacturers | Thunes |
| Wheel arrangement | 4-8-0 (Twelve-wheeler) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Norwegian State Railways type 26Remove |
|---|---|
| Length | 17.91 m |
| Wheelbase | 8.45 m |
| Total wheelbase | 15.15 m |
| Empty mass | 57.5 t |
| Service mass | 65.4 t |
| Adhesion mass | 47.5 t |
| Total mass | 101.8 t |
| Rigid wheelbase | 3.40 m |
| Water capacity | 15,000 l |
| Fuel capacity | 4 t (coal) |
Boiler
| Property | Norwegian State Railways type 26Remove |
|---|---|
| Grate area | 2.7 m² |
| Firebox surface | 10.2 m² |
| Tube heating surface | 139 m² |
| Evaporative heating surface | 149.2 m² |
| Superheater surface | 37.8 m² |
| Total heating surface | 187.0 m² |
Power plant
| Property | Norwegian State Railways type 26Remove |
|---|---|
| Driver diameter | 1,350 mm |
| Boiler pressure | 12 bar |
| Expansion type | simple expansion |
| Cylinders | four, 380 x 600 mm |
Power
| Property | Norwegian State Railways type 26Remove |
|---|---|
| Power source | steam |
| Estimated power | 725 kW (986 PS) |
| Top speed | 70 km/h |
| Starting effort | 130.9 kN |
Calculated values
| Property | Norwegian State Railways type 26Remove |
|---|---|
| Factor of adhesion | 1 : 3.56 |
| Optimal speed | 34 km/h |
| Power-to-weight ratio | 11.1 kW/t |
| Heating Surface Equivalent | 275.8 m² |
| Cylinder volume/HSE | 1 : 986.90 |
| Adhesive weight/Total | 1 : 1.38 |
| Tractive force/Heating surface | 1 : 14.62 |
| Grate area/Heating surface | 1 : 69.26 |
| Firebox/Tube surface | 1 : 13.63 |
| Total/Superheater | 1 : 3.95 |
