The reference for locomotives and railcars
Midland class 2000
London, Midland & Scottish class 3P
Great Britain | 1907 | 40 produced

The Midland Railway's class 2000 was a heavy suburban tank locomotive designed in the tradition of the popular 0-4-4T wheel arrangement, but with an additional driving axle. The water tanks extended to the smokebox and, in conjunction with the shape of the side windows in the cab, led to the nickname “flatiron”. Another feature was the cutouts in the water tanks, which guaranteed accessibility to the inside motion.

The boiler was replaced between 1920 and 1926 with a new one with superheater and Belpaire firebox. In order to guarantee sufficient curve negotiation, the first driving axle was designed with lateral play. This was probably the cause for the oscillations at higher speeds, which led to several derailments. They were soon only used in freight service and were withdrawn between 1935 and 1938.

Variantas builtsuperheated
Axle config0-6-4T 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length40 ft 4 5/8 in
Wheelbase28 ft
Fixed wheelbase8 ft 6 in
Service weight162,220 lbs171,471 lbs
Adhesive weight117,980 lbs124,431 lbs
Water capacity2,690 us gal
Fuel capacity7,840 lbs (coal)
Power sourcesteam
Estimated power750 hp (559 kW)950 hp (708 kW)
Optimal speed24 mph31 mph
Starting effort19,756 lbf
Power Plant
Driver diameter67 in
Boiler pressure175 psi
Expansion typesimple
Cylinderstwo, 18 1/2 x 26 in
Grate area21 sq ft
Firebox area125 sq ft123.5 sq ft
Tube heating area1,206.5 sq ft1,043.5 sq ft
Evaporative heating area1,331.5 sq ft1,167 sq ft
Superheater area253 sq ft
Total heating area1,331.5 sq ft1,420 sq ft
Calculated Values
steam locomotive
tank locomotive
Richard Deeley
last changed: 03/2024

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