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North Eastern classes Z and Z1
Vincent Raven designed the Atlantics of the class V2 in 1911 with a single expansion three-cylinder engine. He had ten saturated and ten superheated locomotives built, which had cylinders of different dimensions and w...
General
| Property | North Eastern classes Z and Z1 Remove |
|---|---|
| Built | 1911 |
| Manufacturers | North British |
| Wheel arrangement | 4-4-2 (Atlantic) |
| Gauge | 1,435 mm (Standard gauge) |
Dimensions and weights
| Property | North Eastern classes Z and Z1 Remove |
|---|---|
| Length | 19.59 m |
| Wheelbase | 8.99 m |
| Rigid wheelbase | 2.31 m |
| Service weight | 77.9 t |
| Adhesive weight | 40.2 t |
| Axle load | 20.2 t |
| Total weight | 123.7 t |
| Water capacity | 18,753 l |
| Fuel capacity | 5.6 t (coal) |
Boiler
| Property | North Eastern classes Z and Z1 Remove |
|---|---|
| Grate area | 2.508 m² |
| Firebox surface | 16.723 m² |
| Tube heating surface | 200.671 m² |
| Evaporative heating surface | 217.393 m² |
| Total heating surface | 217.4 m² |
Power plant
| Property | North Eastern classes Z and Z1 Remove |
|---|---|
| Driver diameter | 2,083 mm |
| Boiler pressure | 12.8 bar |
| Expansion type | simple expansion |
| Cylinders | three, 394 x 660 mm |
Power
| Property | North Eastern classes Z and Z1 Remove |
|---|---|
| Power source | steam |
| Estimated power | 783 kW (1,065 PS) |
| Starting effort | 79.9 kN |
Calculated values
| Property | North Eastern classes Z and Z1 Remove |
|---|---|
| Factor of adhesion | 1 : 4.94 |
| Optimal speed | 60 km/h |
| Power-to-weight ratio | 10.0 kW/t |
| Heating Surface Equivalent | 301.0 m² |
| Cylinder volume/HSE | 1 : 801.25 |
| Adhesive weight/Total | 1 : 1.94 |
| Tractive force/Heating surface | 1 : 7.68 |
| Grate area/Heating surface | 1 : 86.68 |
| Firebox/Tube surface | 1 : 12.00 |
