London, Midland & Scottish Stanier class 2 0-4-4-T
Although called “Stanier class 2”, these ten 0-4-4T passenger locomotives had actually been designed after Midland-style practices. As Stanier had just become Chief Mechanical Engineer of the LMS in 1932 when they were built, he most likely just designed some details, while much of the work can be attributed to Fowler. These locomotives had been ordered since the LMS already had several power class 1P 0-4-4T locomotives and decided that they needed a larger variant in the 2P class.
They were built with spare G6-type boilers which were usually fitted to Johnson 0-6-0 goods locomotives. They were only a few years old and had a Belpaire firebox, but no superheater. The driving wheels had a diameter of five feet an seven inches (1,702 mm) for sufficient speed on longer runs. In 1934, two were fitted with vacuum control gear for use in push-pull trains. The others only received another type of push-pull controls in times of British Railways. Nine were withdrawn in 1959 and the last one in 1962.
Technical data
General
- Built
- 1932-1933
- Manufacturers
- Derby
- Wheel arrangement
- 0-4-4T
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 10.74 m
- Service mass
- 59 t
- Water capacity
- 6,136 l
- Fuel capacity
- 3 t (coal)
Boiler
- Grate area
- 1.626 m²
- Firebox surface
- 9.662 m²
- Tube heating surface
- 83.799 m²
- Evaporative heating surface
- 93.461 m²
- Total heating surface
- 93.5 m²
Power plant
- Driver diameter
- 1,702 mm
- Boiler pressure
- 11 bar
- Expansion type
- simple expansion
- Cylinders
- two, 457 x 660 mm
Power
- Power source
- steam
- Estimated power
- 410 kW (557 PS)
- Starting effort
- 76.1 kN
Calculated values
- Optimal speed
- 34 km/h
- Power-to-weight ratio
- 7.0 kW/t
- Heating Surface Equivalent
- 141.8 m²
- Cylinder volume/HSE
- 1 : 1,529.51
- Tractive force/Heating surface
- 1 : 17.00
- Grate area/Heating surface
- 1 : 57.48
- Firebox/Tube surface
- 1 : 8.67