Midland & Great Northern Joint No. 81 to 92
Great Britain 1900 12 produced
The increased traffic on the Midland and Great Northern Joint Railway required new freight locomotives around the turn of the century. There was the opportunity to use some of 25 machines ordered by the Great Northern with a 0-6-0 wheel arrangement. It was Ivatt's standard design, which was built by Dübs. Twelve of these were taken over, given the usual yellow livery of the MGNJ and given the numbers 81 to 92.
Technical data
General
- Built
- 1900
- Manufacturers
- Dübs & Co.
- Wheel arrangement
- 0-6-0 (Six-coupled)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 11.27 m
- Wheelbase
- 4.72 m
- Service mass
- 41.8 t
- Adhesion mass
- 41.8 t
- Total mass
- 80.3 t
- Rigid wheelbase
- 4.72 m
- Axle load
- 14.9 t
- Water capacity
- 14,411 l
- Fuel capacity
- 6.1 t (coal)
Boiler
- Grate area
- 1.654 m²
- Firebox surface
- 10.173 m²
- Tube heating surface
- 95.133 m²
- Evaporative heating surface
- 105.306 m²
- Total heating surface
- 105.3 m²
Power plant
- Driver diameter
- 1,562 mm
- Boiler pressure
- 12.1 bar
- Expansion type
- simple expansion
- Cylinders
- two, 444 x 660 mm
Power
- Power source
- steam
- Estimated power
- 485 kW (659 PS)
- Starting effort
- 85.7 kN
Calculated values
- Factor of adhesion
- 1 : 4.78
- Optimal speed
- 35 km/h
- Power-to-weight ratio
- 11.6 kW/t
- Heating Surface Equivalent
- 156.2 m²
- Cylinder volume/HSE
- 1 : 1,312.41
- Adhesive weight/Total
- 1 : 1.00
- Tractive force/Heating surface
- 1 : 16.99
- Grate area/Heating surface
- 1 : 63.67
- Firebox/Tube surface
- 1 : 9.35
