Great Eastern class C32
London & North Eastern class F3
The GER class C32 was a tank version of Holden's T26 with an additional trailing axle. It was intended for suburban long distance stopping trains and had a driving wheelbase that was three inches shorter than that of the T26. Between 1893 and 1895, four batches of ten each were built at Stratford. Batch three and four were built with condensing gear. A fifth batch of ten followed in 1902 and had a new boiler with a pressure of 160 instead of 140 psi. Later all were rebuilt to the same boiler.
Like many 2-4-2 tank locomotives, they tended to hunt at speed since they had no guidance from the tender. To improve this, coil springs had to be added to the leading and trailing axles to reset them into the centre position. Shortly before World War I, they were moved to rural service in East Anglia. In 1923 they became LNER class F3. The LNER removed the condensing gear from all locomotives. The class was withdrawn between 1936 and 1953.
Technical data
General
- Built
- 1893-1895, 1902
- Manufacturers
- Stratford
- Wheel arrangement
- 2-4-2 (Columbia)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Wheelbase
- 7.09 m
- Service mass
- 59.5 t
- Adhesion mass
- 29.7 t
- Rigid wheelbase
- 2.67 m
- Axle load
- 15.5 t
- Water capacity
- 5,455 l
Boiler
- Grate area
- 1.672 m²
- Firebox surface
- 9.374 m²
- Tube heating surface
- 103.689 m²
- Evaporative heating surface
- 113.063 m²
- Total heating surface
- 113.1 m²
Power plant
- Driver diameter
- 1,727 mm
- Boiler pressure
- 9.7 bar
- Expansion type
- simple expansion
- Cylinders
- two, 444 x 610 mm
Power
- Power source
- steam
- Estimated power
- 391 kW (532 PS)
- Starting effort
- 57.2 kN
Calculated values
- Factor of adhesion
- 1 : 5.10
- Optimal speed
- 42 km/h
- Power-to-weight ratio
- 6.6 kW/t
- Heating Surface Equivalent
- 159.9 m²
- Cylinder volume/HSE
- 1 : 1,182.96
- Adhesive weight/Total
- 1 : 2.00
- Tractive force/Heating surface
- 1 : 10.57
- Grate area/Heating surface
- 1 : 67.62
- Firebox/Tube surface
- 1 : 11.06