British Rail D0260

D0260, named Lion, was a prototype Type 4 mainline diesel locomotive built in 1962 by the Birmingham Railway Carriage and Wagon Company, in association with Sulzer and Associated Electrical Industries, at their Smethwick works in Birmingham to demonstrate their wares to British Railways. The locomotive’s number was derived from its works number, DEL260.

BRCW / AEI Lion
Type and origin Power type Diesel-electric Builder Birmingham Railway Carriage and Wagon Company and AEI Ltd Serial number DEL260 Build date 1962
Specifications Configuration: ​  • UIC Co'Co' Gauge 1,435 mm (4 ft 8 1⁄2 in) Wheel diameter 3 ft 9 in (1.143 m) Wheelbase 50 ft 9 in (15.47 m) Length 63 ft 6 in (19.35 m) Width 8 ft 10 in (2.69 m) Height 12 ft 10 in (3.91 m) Loco weight 114 long tons (116 t) Fuel capacity 850 imp gal (3,900 L; 1,020 US gal) Prime mover Sulzer 12LDA28-C Traction motors AEI, 6 off Transmission Diesel-electric Train heating Steam generator
Performance figures Top speed 100 mph (160 km/h) Power output 2,750 hp (2,050 kW) Tractive effort 55,000 lbf (244.65 kN)
Career Railroad(s) British Railways Number D0260 Axle load class RA 7 Disposition Returned to manufacturer, scrapped