BR BB

Built by SR, BR

Weight

93 t

205,030 lb

Length

20.54 m

67 ft 5 in

Track gauge

1,435 mm

Standard gauge

Years built

1945–1951

110 units

Axle arrangement

2'C1' h3

Overview of the BR BB

Explore the iconic BR BB steam locomotive, a true testament to British railway engineering.

This powerful 4-6-2 (2'C1' h3) locomotive was built by the Southern Railway and later by British Railways between 1945 and 1951, with 110 units produced.

Measuring 20.54 meters in length and weighing 93 tons, the BR BB boasts a tractive effort of 123 kN, showcasing its robust performance.

Many of these magnificent machines were refurbished between 1955 and 1961, with some continuing to operate and captivate enthusiasts, notably at heritage railways like the Severn Valley Railway.

BR BB technical specifications

	Value	Imperial / US
Built by	SR, BR · 1945–1951110 units
Refurbished	SR 1955 - 1961 (60)
Tractive effort	123 kN27,652 lbf	27,652 lbf
Track gauge	1,435 mmStandard gauge4 ft 8½ in	4 ft 8½ in
UIC axle arrangement	2'C1' h3
Whyte notation	4-6-2
Length	20.54 m67 ft 5 in	67 ft 5 in
Weight	93 t205,030 lb	205,030 lb

Source of the data: en.wikipedia.orgView this model on trainspo.com Spotted an error? Let us know

Operators of the BR BB

Railway companies that have operated the BR BB, with the class designation used by each of them.

Operator	Class	Country
British Railways Board	BR West Country	United Kingdom
Severn Valley Railway	SVR West Country	United Kingdom
Southern Railway	SR Battle of Britain	United Kingdom