British Rail Class D2/11

British Rail Class D2/11
D2999 on display at the Middleton Railway
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 1⁄2 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 preserved D2998 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.