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Swiss Central Railway D4T
After the Mallet tank locomotives later known as Ed 2x2/2, the SCB had twelve more tender locomotives built, which were initially designated D4T. They had the same cylinder size as their predecessors, but a larger boi...
General
| Property | Swiss Central Railway D4TRemove |
|---|---|
| Built | 1897-1900 |
| Manufacturers | SLM |
| Wheel arrangement | 0-4-4-0 |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | Swiss Central Railway D4TRemove |
|---|---|
| Wheelbase | 6.20 m |
| Rigid wheelbase | 1.90 m |
| Empty weight | 52 t |
| Service weight | 57 t |
| Adhesive weight | 57 t |
| Total weight | 87.8 t |
| Water capacity | 13,000 l |
| Fuel capacity | 4 t (coal) |
Boiler
| Property | Swiss Central Railway D4TRemove |
|---|---|
| Grate area | 2 m² |
| Evaporative heating surface | 131.5 m² |
| Total heating surface | 131.5 m² |
Power plant
| Property | Swiss Central Railway D4TRemove |
|---|---|
| Driver diameter | 1,280 mm |
| Boiler pressure | 14 bar |
| Expansion type | compound |
| Cylinders | four, HP: 355 x 640 mm and LP: 550 x 640 mm |
Power
| Property | Swiss Central Railway D4TRemove |
|---|---|
| Power source | steam |
| Estimated power | 500 kW (680 PS) |
| Top speed | 55 km/h |
| Starting effort | 105.9 kN |
| Starting effort simple | 127.0 kN |
Calculated values
| Property | Swiss Central Railway D4TRemove |
|---|---|
| Factor of adhesion | 1 : 5.28 |
| Optimal speed | 29 km/h |
| Power-to-weight ratio | 8.8 kW/t |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 16.81 |
| Grate area/Heating surface | 1 : 65.75 |
