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British Rail Class D3/9

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LNER J45 or DES1 class
British Rail Class D3/9
Type and origin
Power typeDiesel-electric
BuilderLondon and North Eastern Railway’s Doncaster Works
Serial number1960, 1963, 1973, 1978
Build date1944–1945
Total produced4
 • Whyte0-6-0 DE
Gauge4 ft 8 12 in (1,435 mm)
Wheel diameter4 ft 0 in (1.219 m)
Loco weight50.0–51.0 long tons (50.8–51.8 t)
Prime moverEnglish Electric 6KT
Traction motorsEnglish Electric, 2 off
MU workingNot fitted
Train heatingNone
Train brakesVacuum
Performance figures
Top speed20 mph (32 km/h)
Power outputEngine: 350 bhp (261 kW)
Tractive effort32,000 lbf (142.3 kN)
Railroad(s)London and North Eastern Railway,
British Railways
ClassLNER: J45; DES1 from September 1945;
BR: DEJ1; later D3/9; later 3/10
NumberLNER 8000–8003, BR 15000–15003
Axle load classLNER: RA 5;
BR: RA 7
DispositionAll scrapped, 1968

British Rail Class D3/9 was a class of four locomotives built by the London and North Eastern Railway at their Doncaster Works in England. It was a diesel powered locomotive in the pre-TOPS period.