Banner
Navigation

Navigation

loco-info.com
The reference for locomotives and railcars

Midland class 2441

London, Midland & Scottish class 3F

Great Britain 1899 60 produced
flickr/Stratfordman72

The class 2441 consisted of 60 0-6-0T side tank locomotives which were designed by Samuel Waite Johnson for mixed traffic. Johnson used the same boiler with a round-topped firebox as he had used for his 0-4-4T. The first 20 received a condenser for goods service around Blackfriars in London. In total, 60 had been built by Vulcan Foundry by 1902. In 1918, Henry Fowler equipped them with new boilers with a Belpaire firebox. Six years later, he used the class 2441 as basis for the 3F “Jinty” that had a smaller boiler, but is often credited to have reached 60 mph or 97 km/h.

Originally numbered 2441 to 2460 and 2741 to 2780, they were renumbered to 1900 to 1959 in 1907. The LMS assigned them to power class 3F and renumbered them in the 7200 range in 1934. British Railways took over all 60 in 1948 and put a 4 in front of their numbers. The first two were withdrawn in 1954, but it took until 1966 until all were gone.

Technical data

General

Built
1899-1902
Manufacturers
Vulcan Foundry
Wheel arrangement
0-6-0ST (Six-coupled)
Gauge
1,435 mm (Standard gauge)

Dimensions and weights

Wheelbase
5.03 m
Service mass
49.5 t
Adhesion mass
49.5 t
Rigid wheelbase
5.03 m
Water capacity
4,546 l

Boiler

Grate area
1.486 m²
Firebox surface
10.219 m²
Tube heating surface
106.095 m²
Evaporative heating surface
116.315 m²
Total heating surface
116.3 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
410 kW (557 PS)
Starting effort
92.7 kN

Calculated values

Factor of adhesion
1 : 5.24
Optimal speed
27 km/h
Power-to-weight ratio
8.3 kW/t
Heating Surface Equivalent
167.4 m²
Cylinder volume/HSE
1 : 1,295.27
Adhesive weight/Total
1 : 1.00
Tractive force/Heating surface
1 : 16.64
Grate area/Heating surface
1 : 78.27
Firebox/Tube surface
1 : 10.38
Auf Deutsch umschalten

Settings

Your settings are retained for this browser session only.

Consent to cookies

We use cookies to save your display settings. If you decline, the settings are retained only for the current browser session.