British Rail Class D3/11

British Rail Class D3/11 was a locomotive commissioned by the Great Western Railway, but delivered to its successor British Rail in England. It was a diesel powered locomotive in the pre-TOPS period.

British Rail Class D3/11
Type and origin Power type Diesel-electric Builder British Railways’ Swindon Works Order number Swindon Lot 346 Build date 1948 Total produced 6
Specifications Configuration: ​  • Whyte 0-6-0 DE  • UIC C Gauge 4 ft 8 1⁄2 in (1,435 mm) Wheel diameter 4 ft 0+1⁄2 in (1.232 m) Minimum curve 3.5 chains (70 m) Wheelbase 11 ft 6 in (3.51 m) Length 29 ft 1+1⁄2 in (8.88 m) Width 9 ft 0 in (2.74 m) Height 12 ft 5+5⁄8 in (3.80 m) Loco weight 46.45 long tons (47.20 t) Fuel capacity 659 imp gal (3,000 L; 791 US gal) Lubricant cap. 65 imp gal (300 L; 78 US gal) Coolant cap. 140 imp gal (640 L; 170 US gal) Prime mover English Electric 6KT Generator English Electric 801B Traction motors English Electric 506B, 2 off MU working Not fitted Train heating None Loco brake Air Train brakes None
Performance figures Top speed 20 mph (32 km/h) Power output Engine: 350 bhp (260 kW), At rail: 194 hp (145 kW) Tractive effort 38,500 lbf (171.3 kN)
Career Railroad(s) British Railways Class D3/11; later 3/11 Number 15101–15106 Axle load class Route availability 5 Retired 1967 Disposition All scrapped