Norfolk Railway No. 3 to 5
Great Britain 1844 3 produced
These three locomotives with five and a half foot driving wheels were delivered to the Norfolk Railway by Stephenson in 1844. They had an inside frame and outside cylinders. Numbers 3 and 5 were already sold in 1849. Only number 4 came to the Eastern Counties Railway, where it received the number 45. It also came to the Great Eastern and was scrapped in 1868.
Technical data
General
- Built
- 1844
- Manufacturers
- Robert Stephenson & Co.
- Wheel arrangement
- 2-2-2 (Jenny Lind)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Wheelbase
- 3.15 m
- Service mass
- 21.3 t
- Adhesion mass
- 10.2 t
- Rigid wheelbase
- 3.15 m
Boiler
- Grate area
- 0.836 m²
- Firebox surface
- 4.738 m²
- Tube heating surface
- 62.505 m²
- Evaporative heating surface
- 67.243 m²
- Total heating surface
- 67.2 m²
Power plant
- Driver diameter
- 1,676 mm
- Boiler pressure
- 6.9 bar
- Expansion type
- simple expansion
- Cylinders
- two, 356 x 559 mm
Power
- Power source
- steam
- Estimated power
- 89 kW (121 PS)
- Starting effort
- 24.7 kN
Calculated values
- Factor of adhesion
- 1 : 4.04
- Optimal speed
- 23 km/h
- Power-to-weight ratio
- 4.2 kW/t
- Heating Surface Equivalent
- 90.9 m²
- Cylinder volume/HSE
- 1 : 1,220.61
- Adhesive weight/Total
- 1 : 2.10
- Tractive force/Heating surface
- 1 : 7.67
- Grate area/Heating surface
- 1 : 80.43
- Firebox/Tube surface
- 1 : 13.19
