Title: British Rail Class 29 - Wikipedia
Headings: British Rail Class 29
British Rail Class 29
Contents
Background
Withdrawal
Numbering
Model railways
References
Sources
Further reading
External links

Content: British Rail Class 29 - Wikipedia
British Rail Class 29
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British Railways Class 29
D6121 in BR green livery with white stripe and large yellow warning panel and headcode at Inverness MPD, August 1968
Type and origin
Power type
Diesel-electric
Builder
North British Locomotive Co.
Build date
1958–1960 (original class 21)
Rebuilder
Paxman
Rebuild date
Rebuilt: 1963, 1965–1967
Number rebuilt
20
Specifications
Configuration: ​
• UIC
Bo'Bo'
• Commonwealth
Bo-Bo
Gauge
4 ft 8 1⁄2 in ( 1,435 mm) standard gauge
Wheel diameter
3 ft 7 in (1.092 m)
Minimum curve
3.5 chains (231.00 ft; 70.41 m)
Wheelbase
37 ft 0 in (11.28 m)
Length
51 ft 6 in (15.70 m)
Width
8 ft 8 in (2.64 m)
Height
12 ft 8 in (3.86 m)
Loco weight
73 long tons (74.2 t; 81.8 short tons)
Fuel capacity
460 imp gal (2,100 l; 550 US gal)
Prime mover
Paxman Ventura
Engine type
V12 diesel
Generator
DC generator
Traction motors
4 GEC DC motors
Transmission
Diesel electric
MU working
● Red Circle
Train heating
Steam
Train brakes
Vacuum
Performance figures
Maximum speed
80 mph (130 km/h)
Power output
Engine: 1,350 hp (1,010 kW)
Tractive effort
Maximum: 45,000 lbf (200 kN)
Brakeforce
50 long tons-force (498 kN)
Career
Operators
British Railways
Numbers
D6100–03/06–08/12–14/16/19, D6121/23/24/29/30/32/33/37
Axle load class
Route availability 6 (RA 5 from 1969)
Retired
1969–1971
Disposition
All scrapped
The British Rail Class 29 were a class of 20 diesel-electric Bo-Bo locomotives produced by the re-engining of the NBL Type 2 units. The units were designed for both passenger and freight trains. Contents
1 Background
2 Withdrawal
3 Numbering
4 Model railways
5 References
6 Sources
7 Further reading
8 External links
Background
The machines were produced from 1963 onwards from the North British Type 2 (later Class 21 under TOPS) by replacing the original unreliable licence-built MAN of the Class 21s with Paxman Ventura V12 engine at Paxman's Colchester works.