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North Eastern classes M1 and Q
Worsdell had 20 class M1 locomotives built from 1892, which, unlike previous express locomotives, did not have a compound engine . From 1896, 30 more of the class Q followed, which had a smaller boiler and slightly la...
| North Eastern classes M1 and QRemove | |
|---|---|
| Variant | |
| Built | 1892-1894 |
| Manufacturers | Gateshead |
| Wheel arrangement | 2B |
| Gauge | 1435 mm |
| Length | |
| Service mass | 51514 kg |
| Top speed | |
| Power | |
| Engine |
General
| Property | North Eastern classes M1 and QRemove |
|---|---|
| Built | 1892-1894 |
| Manufacturers | Gateshead |
| Wheel arrangement | 4-4-0 (American) |
| Gauge | 1,435 mm |
Dimensions and weights
| Property | North Eastern classes M1 and QRemove |
|---|---|
| Wheelbase | 7.16 m |
| Service mass | 51.5 t |
| Adhesion mass | 34.2 t |
| Rigid wheelbase | 2.82 m |
| Axle load | 17.1 t |
| Water capacity | 18,753 l |
| Fuel capacity | 5.3 t (coal) |
Boiler
| Property | North Eastern classes M1 and QRemove |
|---|---|
| Grate area | 1.821 m² |
| Firebox surface | 11.241 m² |
| Tube heating surface | 113.342 m² |
| Evaporative heating surface | 124.583 m² |
| Total heating surface | 124.6 m² |
Power plant
| Property | North Eastern classes M1 and QRemove |
|---|---|
| Driver diameter | 2,165 mm |
| Boiler pressure | 11 bar |
| Expansion type | simple expansion |
| Cylinders | two, 483 x 660 mm |
Power
| Property | North Eastern classes M1 and QRemove |
|---|---|
| Power source | steam |
| Estimated power | 485 kW (659 PS) |
| Starting effort | 66.6 kN |
Calculated values
| Property | North Eastern classes M1 and QRemove |
|---|---|
| Factor of adhesion | 1 : 5.04 |
| Optimal speed | 45 km/h |
| Power-to-weight ratio | 9.4 kW/t |
| Heating Surface Equivalent | 180.8 m² |
| Cylinder volume/HSE | 1 : 1,336.39 |
| Adhesive weight/Total | 1 : 1.50 |
| Tractive force/Heating surface | 1 : 11.17 |
| Grate area/Heating surface | 1 : 68.41 |
| Firebox/Tube surface | 1 : 10.08 |
