London, Midland & Scottish Fowler class 3F “Jinty”
Great Britain 1924 422 produced
After a series of 0-6-0T tank locomotives developed for the Midland Railway, Henry Fowler's class 3F built for the LMS was the last one in the row. Based on the MR class 2441 built from 1899, these had a smaller boiler with a Belpaire firebox. It got the nickname “Jinty” and is said to have reached speeds of up to 60 mph or 97 km/h, what is exceptional for a locomotive without leading or trailing axles.
Between 1924 and 1931, a total of 422 were built by the LMS Horwich works and several commercial manufacturers. Some were used in France in World War II. British Railways inherited 412 and got five back from France. Withdrawals only started in 1959 and were finished in 1967.
Technical data
General
- Built
- 1924-1931
- Manufacturers
- W. G. Bagnall, Beardmore, Hunslet, Horwich, North British, Vulcan Foundry
- Wheel arrangement
- 0-6-0T (Six-coupled)
- Gauge
- 1,435 mm (Standard gauge)
Dimensions and weights
- Length
- 10.90 m
- Wheelbase
- 5.03 m
- Service mass
- 50.3 t
- Adhesion mass
- 50.3 t
- Rigid wheelbase
- 5.03 m
- Axle load
- 18 t
- Water capacity
- 5,455 l
- Fuel capacity
- 2.3 t (coal)
Boiler
- Grate area
- 1.486 m²
- Firebox surface
- 9.012 m²
- Tube heating surface
- 89.977 m²
- Evaporative heating surface
- 98.988 m²
- Total heating surface
- 99.0 m²
Power plant
- Driver diameter
- 1,397 mm
- Boiler pressure
- 11 bar
- Expansion type
- simple expansion
- Cylinders
- two, 457 x 660 mm
Power
- Power source
- steam
- Estimated power
- 373 kW (507 PS)
- Starting effort
- 92.7 kN
Calculated values
- Factor of adhesion
- 1 : 5.32
- Optimal speed
- 24 km/h
- Power-to-weight ratio
- 7.4 kW/t
- Heating Surface Equivalent
- 144.0 m²
- Cylinder volume/HSE
- 1 : 1,505.32
- Adhesive weight/Total
- 1 : 1.00
- Tractive force/Heating surface
- 1 : 19.55
- Grate area/Heating surface
- 1 : 66.61
- Firebox/Tube surface
- 1 : 9.98
