Derby Works 25/2

Built by Crewe Works, Darlington Works, Derby Works, Beyer & Peacock

Top speed

145 km/h

90 mph

Power output

932 kW

1,250 hp

Length

15.39 m

50 ft 6 in

Track gauge

1,435 mm

Standard gauge

Axle arrangement

Bo'Bo'

Overview of the Derby Works 25/2

Discover the robust BR 25/2 diesel locomotive, a significant piece of British Railways engineering. This powerful engine, designed for the 1435 mm gauge network, played a vital role in the United Kingdom's rail operations, representing a classic era of locomotive technology.

Built by renowned manufacturers including Crewe Works, Darlington Works, Derby Works, and Beyer & Peacock, the BR 25/2 boasts impressive performance. It achieved a top speed of 145 km/h, powered by a 932 kW engine, making it a versatile workhorse for various rail demands.

With a Bo'Bo' wheel arrangement and a tractive effort of 170 kN, this locomotive was built for substantial hauling capabilities. Its dimensions, measuring 15.39 meters in length, 2.77 meters in width, and 3.86 meters in height, highlight its substantial presence on the tracks. Explore the legacy and capabilities of the BR 25/2 diesel locomotive.

Derby Works 25/2 technical specifications

	Value	Imperial / US
Series	BR25
Built by	Crewe Works, Darlington Works, Derby Works, Beyer & Peacock
Top speed	145 km/h90 mph	90 mph
Power output	932 kW1,250 hp	1,250 hp
Tractive effort	170 kN38,218 lbf	38,218 lbf
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
UIC axle arrangement	Bo'Bo'
Length	15.39 m50 ft 6 in	50 ft 6 in
Width	2.77 m9 ft 1 in	9 ft 1 in
Height	3.86 m12 ft 8 in	12 ft 8 in