The British Railways standard class 4MT 2-6-0 Mogul tender steam locomotives were designed at Doncaster works under the oversight of R. A. Riddles and built at Horwich, Derby and Doncaster between 1952 and 1957. 115 were built for all BR regions except the Western, and numbered 76000 to 76114. No. 76114 was the last steam locomotive to be built at Doncaster Works.
The design was essentially a standardised version of the LMS Ivatt Class 4 and although classified 4MT, was primarily intended for freight use, hence the smaller driving wheels than other BR standard class 4s. The locomotives were coal fired, had two outside cylinders, Walschaerts valve gear and were fitted with BR1B, BR2 or BR2A tenders.
The class was withdrawn between 1964 and 1967, four have been preserved; 76017, 76077, 76079 & 76084.
BR Standard Class 4MT 2-6-0 specification
Length: 60 ft 0 in (18.29 m)
Width: 8 ft 9½ in (2.68 m)
Height: 13 ft 0 in (3.96m)
Gauge: 4 ft 8½ in (1.435m)
Driving wheel dia: 5 ft 3 in (1 600mm)
Boiler Pressure: 225 psi (1.55 MPa)
Cylinders: 17½ x 26 in (444 x 660mm)
Loco weight: 59 tons 2 cwt (60.048 tonnes)
Tractive effort: 24,170 lbf (95.6 kN)
Last updated 28/10/11