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Midland Great Western class A
The class A were the heaviest locomotives in Ireland at the time they entered service. Their job was to haul heavy express trains between the east and west coasts. Due to their high axle load , they could not be used ...
| Midland Great Western class ARemove | |
|---|---|
| Variant | as built |
| Built | 1902-1905 |
| Manufacturers | Broadstone |
| Wheel arrangement | 2B |
| Gauge | 1600 mm |
| Length | 16624 mm |
| Service mass | 51717 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | Midland Great Western class Aas built |
|---|---|
| Built | 1902-1905 |
| Manufacturers | Broadstone |
| Wheel arrangement | 4-4-0 (American) |
| Gauge | 1,600 mm |
Dimensions and weights
| Property | Midland Great Western class Aas built |
|---|---|
| Length | 16.62 m |
| Length loco | 9.54 m |
| Wheelbase | 6.86 m |
| Service mass | 51.7 t |
| Adhesion mass | 34.7 t |
| Total mass | 88.1 t |
| Rigid wheelbase | 2.82 m |
| Axle load | 18.2 t |
| Water capacity | 13,639 l |
| Fuel capacity | 5.1 t (coal) |
Boiler
| Property | Midland Great Western class Aas built |
|---|---|
| Grate area | 1.858 m² |
| Firebox surface | 13.935 m² |
| Tube heating surface | 112.691 m² |
| Evaporative heating surface | 126.627 m² |
| Total heating surface | 126.6 m² |
Power plant
| Property | Midland Great Western class Aas built |
|---|---|
| Driver diameter | 1,905 mm |
| Boiler pressure | 12.4 bar |
| Expansion type | simple expansion |
| Cylinders | two, 457 x 660 mm |
Power
| Property | Midland Great Western class Aas built |
|---|---|
| Power source | steam |
| Estimated power | 559 kW (760 PS) |
| Starting effort | 76.4 kN |
Calculated values
| Property | Midland Great Western class Aas built |
|---|---|
| Factor of adhesion | 1 : 4.45 |
| Optimal speed | 45 km/h |
| Power-to-weight ratio | 10.8 kW/t |
| Heating Surface Equivalent | 196.3 m² |
| Cylinder volume/HSE | 1 : 1,104.63 |
| Adhesive weight/Total | 1 : 1.49 |
| Tractive force/Heating surface | 1 : 12.61 |
| Grate area/Heating surface | 1 : 68.15 |
| Firebox/Tube surface | 1 : 8.09 |
