British Rail Class D1/3

British Rail Class D1/3
Type and origin Power type Diesel-mechanical Builder Ruston & Hornsby Serial number 390774, 390777 Build date 1956 Total produced 2
Specifications Configuration: ​  • Whyte 0-4-0 dm  • UIC B Gauge 4 ft 8 1⁄2 in (1,435 mm) standard gauge Wheel diameter 3 ft 4 in (1.016 m) Loco weight 28.00 long tons (28.45 t) Prime mover Ruston 6VPHL Transmission Mechanical, Ruston gearbox MU working Not fitted Train heating None Train brakes None
Performance figures Top speed 15 mph (24 km/h) Power output Engine: 165 bhp (123 kW) Tractive effort 14,350 lbf (63.8 kN)
Career Railroad(s) British Railways Class DY5, later D1/3, later 1/16. No TOPS class. Number 11507, 11508; D2957, D2958 from 1958 Axle load class Route availability 3 Retired 1967–1968 Disposition One sold for industrial use, one scrapped.

British Rail Class D1/3 (formerly DY1) was a locomotive commissioned by British Rail in England. It was a diesel powered locomotive in the pre-TOPS period built by Ruston & Hornsby.