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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 | 1919-1924 |
| Manufacturers | Motala Verkstad;NoHAB;Norsk Maskin Industri;SLM;Hamar Jernstøberi |
| Wheel arrangement | 2D |
| Gauge | 1435 mm |
| Length | 17905 mm |
| Service mass | 69800 kg |
| Top speed | 70 km/h |
| Power | |
| Engine |
General
| Property | Norwegian State Railways type 26Remove |
|---|---|
| Built | 1919-1924 |
| Manufacturers | Motala Verkstad, NoHAB, Norsk Maskin Industri, SLM, Hamar Jernstøberi |
| 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 | 62.2 t |
| Service mass | 69.8 t |
| Adhesion mass | 48.6 t |
| Total mass | 106.2 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 | 3 m² |
| Firebox surface | 10.1 m² |
| Tube heating surface | 126.25 m² |
| Evaporative heating surface | 136.35 m² |
| Superheater surface | 37.85 m² |
| Total heating surface | 174.2 m² |
Power plant
| Property | Norwegian State Railways type 26Remove |
|---|---|
| Driver diameter | 1,350 mm |
| Boiler pressure | 13 bar |
| Expansion type | compound |
| Cylinders | four, HP: 390 x 600 mm and LP: 585 x 600 mm |
Power
| Property | Norwegian State Railways type 26Remove |
|---|---|
| Power source | steam |
| Estimated power | 800 kW (1,088 PS) |
| Top speed | 70 km/h |
| Starting effort | 103.4 kN |
| Starting effort simple | 124.1 kN |
Calculated values
| Property | Norwegian State Railways type 26Remove |
|---|---|
| Factor of adhesion | 1 : 4.61 |
| Optimal speed | 47 km/h |
| Power-to-weight ratio | 11.5 kW/t |
| Heating Surface Equivalent | 262.6 m² |
| Cylinder volume/HSE | 1 : 1,160.24 |
| Adhesive weight/Total | 1 : 1.44 |
| Tractive force/Heating surface | 1 : 12.40 |
| Grate area/Heating surface | 1 : 58.07 |
| Firebox/Tube surface | 1 : 12.50 |
| Total/Superheater | 1 : 3.60 |
