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British Rail Class D3/6 facts for kids

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British Rail Class D3/6
Power type Diesel-electric
Builder English Electric at Hawthorn Leslie
Serial number HL: 3841–3850, 3816
Build date 1934 (1), 1935 (10)
Configuration 0-6-0 DE
UIC classification C
Gauge ft 8+12 in (1,435 mmstandard gauge
Wheel diameter 4 ft 0 12 in (1.232 m)
Locomotive weight 51.45 long tons (52.28 t)
Prime mover English Electric 6K
Traction motors English Electric, 2 off
Multiple working Not fitted
Top speed 30 mph (48 km/h)
Power output Engine: 350 hp (261 kW)
Tractive effort 30,000 lbf (133.4 kN)
Train heating None
Career London, Midland and Scottish Railway,
War Department,
British Railways
Class LMS: 0F; BR: D3/6
Number LMS 7069–7079;
BR 12000–12002
Axle load class Route availability 5

Class D3/6 were diesel shunters built in 1935 by English Electric for the London, Midland and Scottish Railway. They were the first of a new design of diesel shunters based on the English Electric 6K of 350 hp diesel engine. One demonstrator and ten production locomotives were built, numbered 7079 and 7069-7078 by the LMS. Three of these later became British Rail numbers 12000–12002 (previously 7074/76/79 respectively). The remainder were sold to the British War Department in 1940 and were shipped to France during World War II. Of these the first production locomotive, no. 7069, survived the war and was used in industrial service in France. It was later repatriated for preservation and is now based at the Gloucestershire Warwickshire Railway.

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