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. Statistics Great Western number range: 502-507 (not carried) BR 1948 number range: 15101-15106 Former class codes: D3/11, later 3/11 Built by: BR Swindon Years introduced: 1948 Wheel arrangement: 0-6-0 Weight: 46 long tons 9 cwt Height: 12 ft 5⅝ in Length: 29 ft 1½ in Width: Wheelbase: Wheel diameter: 4 ft 0½ in Min curve negotiable: 3½ chains Engine type: English Electric 6KT Engine output: Power at rail: Tractive effort: Cylinder bore: 10 in Cylinder stroke: 12 in Maximum speed: Brake type: Air on loco, no train brakes Route availability: 5 Heating type: Not fitted Multiple coupling type: Not fitted Main generator type: EE801B Aux generator type: EE?? Traction motor type: EE506B No of traction motors: 2 Gear ratio: 21.7:1 Fuel tank capacity: 659 gal Cooling water capacity: 140 gal Lub oil capacity: 65 gal Sanding equipment: Pneumatic References See also GWR diesel shunters List of British Rail classes D003.11 C locomotives Railway locomotives introduced in 1948 Scrapped locomotives Standard gauge locomotives of Great Britain Diesel-electric locomotives of Great Britain