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Cape Government Railways class 7 (1896)
The second type of Class 7 4-8-0 locomotives procured by the Cape Government Railways was built from 1896 for the central and eastern regions. They all came from British manufacturers and 45 were delivered by 1898, wh...
| Cape Government Railways class 7 (1896)Remove | |
|---|---|
| Variant | as built |
| Built | 1896-1898, 1901 |
| Manufacturers | Sharp, Stewart & Co.;Dübs & Co.;Neilson & Co. |
| Wheel arrangement | 2D |
| Gauge | 1067 mm |
| Length | 16288 mm |
| Service mass | 47246 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Cape Government Railways class 7 (1896)as built |
|---|---|
| Built | 1896-1898, 1901 |
| Manufacturers | Sharp, Stewart & Co., Dübs & Co., Neilson & Co. |
| Wheel arrangement | 4-8-0 (Twelve-wheeler) |
| Gauge | 1,067 mm |
Dimensions and weights
| Property | Cape Government Railways class 7 (1896)as built |
|---|---|
| Length | 16.29 m |
| Wheelbase | 6.49 m |
| Total wheelbase | 14.07 m |
| Service mass | 47.2 t |
| Adhesion mass | 36.4 t |
| Total mass | 81.9 t |
| Rigid wheelbase | 3.66 m |
| Axle load | 9.1 t |
| Water capacity | 11,818 l |
| Fuel capacity | 5.6 t (coal) |
Boiler
| Property | Cape Government Railways class 7 (1896)as built |
|---|---|
| Grate area | 1.626 m² |
| Firebox surface | 9.476 m² |
| Tube heating surface | 90.673 m² |
| Evaporative heating surface | 100.15 m² |
| Total heating surface | 100.2 m² |
Power plant
| Property | Cape Government Railways class 7 (1896)as built |
|---|---|
| Driver diameter | 1,086 mm |
| Boiler pressure | 11 bar |
| Expansion type | simple expansion |
| Cylinders | two, 432 x 584 mm |
Power
| Property | Cape Government Railways class 7 (1896)as built |
|---|---|
| Power source | steam |
| Estimated power | 373 kW (507 PS) |
| Starting effort | 94.1 kN |
Calculated values
| Property | Cape Government Railways class 7 (1896)as built |
|---|---|
| Factor of adhesion | 1 : 3.79 |
| Optimal speed | 24 km/h |
| Power-to-weight ratio | 7.9 kW/t |
| Heating Surface Equivalent | 147.5 m² |
| Cylinder volume/HSE | 1 : 1,159.76 |
| Adhesive weight/Total | 1 : 1.30 |
| Tractive force/Heating surface | 1 : 19.62 |
| Grate area/Heating surface | 1 : 61.59 |
| Firebox/Tube surface | 1 : 9.57 |
