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Midland class 480
Based on the class 240 locomotives, Matthew Kirtley developed the class 480. They had inside and outside frames, with the outside frames being curved. They later formed the basis for the class 700 with 17-inch cylinde...
| Midland class 480Remove | |
|---|---|
| Variant | Standard |
| Built | 1863-1869 |
| Manufacturers | Derby;Dübs & Co.;Robert Stephenson & Co.;Kitson & Co.;Sharp, Stewart & Co.;Yorkshire Engine Co. |
| Wheel arrangement | C |
| Gauge | 1435 mm |
| Length | |
| Service mass | 35054 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Midland class 480 Standard Remove |
|---|---|
| Built | 1863-1869 |
| Manufacturers | Derby, Dübs & Co., Robert Stephenson & Co., Kitson & Co., Sharp, Stewart & Co., Yorkshire Engine Co. |
| Wheel arrangement | 0-6-0 (Six-coupled) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | Midland class 480 Standard Remove |
|---|---|
| Wheelbase | 5.00 m |
| Service mass | 35.1 t |
| Adhesion mass | 35.1 t |
| Rigid wheelbase | 5.00 m |
| Axle load | 11.7 t |
Boiler
| Property | Midland class 480 Standard Remove |
|---|---|
| Grate area | 1.431 m² |
| Firebox surface | 7.618 m² |
| Tube heating surface | 94.761 m² |
| Evaporative heating surface | 102.379 m² |
| Total heating surface | 102.4 m² |
Power plant
| Property | Midland class 480 Standard Remove |
|---|---|
| Driver diameter | 1,575 mm |
| Boiler pressure | 9.7 bar |
| Expansion type | simple expansion |
| Cylinders | two, 419 x 610 mm |
Power
| Property | Midland class 480 Standard Remove |
|---|---|
| Power source | steam |
| Estimated power | 261 kW (355 PS) |
| Starting effort | 55.8 kN |
Calculated values
| Property | Midland class 480 Standard Remove |
|---|---|
| Factor of adhesion | 1 : 6.16 |
| Optimal speed | 29 km/h |
| Power-to-weight ratio | 7.4 kW/t |
| Heating Surface Equivalent | 140.5 m² |
| Cylinder volume/HSE | 1 : 1,197.35 |
| Adhesive weight/Total | 1 : 1.00 |
| Tractive force/Heating surface | 1 : 11.38 |
| Grate area/Heating surface | 1 : 71.54 |
| Firebox/Tube surface | 1 : 12.44 |
