British Rail Class D2/11

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British Rail Class D2/11
Type and origin
Power type Diesel-electric
Builder Brush Traction and Beyer, Peacock & Co.
Serial number Brush: 99–103;
BP: 7857, 7861, 7858–7860
Build date 1960
Total produced 5
Specifications
Configuration:
 • Whyte 0-4-0 DE
Gauge 4 ft 8 12 in (1,435 mm) standard gauge
Wheel diameter 3 ft 6 in (1.067 m)
Loco weight 29.90 long tons (30.38 t)
Prime mover Petter-McLaren LE6 or
National M4AAV6
Traction motors Brush
MU working Not fitted
Train heating None
Train brakes None
Performance figures
Top speed 18 mph (29 km/h)
Power output Engine: = 180 bhp (134 kW) or
200 bhp (149 kW)
Tractive effort 19,200 lbf (85.4 kN)
Career
Railroad(s) British Railways
Number in class 1
Number D2999 (bought); D9998 (loaned)
Axle load class Route availability 2
Retired D2999: October 1967
Disposition D2999: Scrapped

In 1958 Brush Traction Ltd and Beyer Peacock co-operated to produce five prototype diesel-electric shunting locomotives of 0-4-0 wheel arrangement. They were intended to demonstrate a new generation of diesel shunters for industrial and mainline use. Two were loaned to British Railways for trials, and one was subsequently purchased by BR. However no large scale orders resulted from these demonstrators.