BR 46

Built by BR

Top speed

145 km/h

90 mph

Power output

1,463 kW

1,962 hp

Weight

140 t

308,647 lb

Length

20.7 m

67 ft 11 in

Track gauge

1,435 mm

Standard gauge

Years built

1961–1963

56 units

Overview of the BR 46

Discover the British Rail Class 46, a robust diesel locomotive that served the United Kingdom.

Built by British Rail between 1961 and 1963, these powerful machines were a common sight on the railway network.

With a top speed of 145 km/h and a significant power output of 1463 kW, the BR 46 was designed for heavy-duty service.

This locomotive, featuring a 1'Co)(Co'1) UIC axle arrangement, boasts impressive dimensions, including a length of 20.7 meters and a weight of 140 tonnes.

Explore the heritage and capabilities of this classic British diesel locomotive.

BR 46 technical specifications

	Value	Imperial / US
Built by	BR · 1961–196356 units
Top speed	145 km/h90 mph	90 mph
Power output	1,463 kW1,962 hp	1,962 hp
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
UIC axle arrangement	(1'Co)(Co'1)
Length	20.7 m67 ft 11 in	67 ft 11 in
Width	2.71 m8 ft 11 in	8 ft 11 in
Height	3.91 m12 ft 10 in	12 ft 10 in
Weight	140 t308,647 lb	308,647 lb