Darlington Works 25/3

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 Darlington Works 25/3

Discover the 25/3 diesel locomotive, a powerful workhorse with proven reliability in the United Kingdom.

Built by renowned workshops like Crewe Works, Darlington Works, Derby Works, and Beyer & Peacock, this locomotive boasts exceptional performance, reaching a top speed of 145 km/h.

With a robust Bo'Bo' axle configuration and a standard gauge of 1435 mm, the 25/3 has distinguished itself through its versatility. Its length of 15.39 meters makes it suitable for various applications.

The impressive power output of 932 kW and a tractive effort of 170 kN underscore its capability to handle demanding challenges.

Originally part of the British Rail fleet, some 25/3 units continue to serve the private sector today, testifying to their lasting effectiveness and value.

This locomotive represents an important piece of British railway history, appreciated for its solidity and operational capabilities.

Darlington Works 25/3 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