British Rail Class D16/1

LMS 10000 & 10001 (British Rail class D16/1)
No.10000 at Chinley
Type and origin Power type Diesel-electric Builder LMS Derby Works Order number LMS Lot number 198[1] Build date 1947–1948 Total produced 2
Specifications Configuration: ​  • UIC Co′Co′  • Commonwealth Co-Co Gauge 4 ft 8+1⁄2 in (1,435 mm) standard gauge Wheel diameter 3 ft 6 in (1.067 m) Wheelbase 51 ft 2 in (15.60 m) Length 61 ft 2 in (18.64 m) Width 9 ft 3 in (2.82 m) Height 12 ft 11+1⁄2 in (3.95 m) Loco weight 127 long tons 13 cwt (285,900 lb or 129.7 t) later 130.65 long tons (132.75 t)[citation needed] Fuel capacity 815 imp gal (3,710 L; 979 US gal) main 85 imp gal (390 L; 102 US gal) service Prime mover English Electric 16SVT Mk I [2] RPM range 450 - 750 rpm Traction motors EE 519/3B,[citation needed] 6 off Transmission Diesel electric MU working ◆ Red Diamond Train heating Clarkson Steam generator, later replaced by Spanner 2,000 pounds (910 kg) per hour model[citation needed] Train brakes Vacuum
Performance figures Maximum speed 93 mph (150 km/h) Power output 1,760 hp (1,310 kW) gross, 1,600 hp (1,190 kW) net Tractive effort 41,400 lbf (184,000 N) max
Career Operators London, Midland and Scottish Railway British Railways Class BR (ER/NER): D16/1, later 16/8; BR Class 34[3][4][5] Power class LMS: 5P5F BR: 5MT, later 6P/5F later Type 3 Numbers 10000–10001 Withdrawn 1963, 1966 Disposition Both scrapped; replica under construction
Technical details: Britain's First Main-Line Diesel-Electric Locomotives, (English Electric), except where noted

LMS No. 10000 and 10001 were some of the first mainline diesel locomotives built in Great Britain. They were built in association with English Electric by the London, Midland and Scottish Railway at its Derby Works, using an English Electric 1,600 hp diesel engine, generator and electrics.

Under British Railways, the locomotives became British Railways Class D16/1; they were initially operated primarily on mainline express passenger services on former LMS lines, both in single and in multiple. In 1953, they were transferred to the Southern Region for comparison with Bulleid's British Rail Class D16/2 diesel locomotives.

Both locomotives were withdrawn and scrapped in the 1960s.