CIÉ 121 Class

Córas Iompair Éireann 121 Class
Preserved 121 Class locomotive (134)
Type and origin
Power typeDiesel-electric
BuilderGeneral Motors Electro Motive Division, La Grange, Illinois, USA
Order number702667–702681
Serial number26271–26285
ModelEMD GL8
Build dateDecember 1960 – January 1961
Total produced15
Specifications
Configuration:
​
 • AARB-B
 • UICBo′Bo′
Gauge1,600 mm (5 ft 3 in)
Wheel diameter40 in (1,016 mm)
Length:
​
 • Over buffers39 ft 10 in (12.14 m)
Loco weight64 tonnes (63.0 long tons; 70.5 short tons)
Prime mover
Engine typeTwo-stroke diesel
AspirationRoots-type supercharger
Traction motorsEMD D47
Cylinders8
Transmission
  • D25 DC generator
  • DC traction motors
Train brakesAir and vacuum
Performance figures
Maximum speed77 mph (124 km/h)
Power output
  • EMD 8-567CR: 950 hp (710 kW)
  • EMD 8-645E: 1,100 hp (820 kW)
Tractive effort:
​
 • Starting35,000 lbf (160 kN)
 • Continuous30,400 lbf (135 kN)
Career
Operators
Number in class15
NumbersB121–B135 (later 121–135)
Withdrawn1986–2008
Disposition2 preserved (124 & 134), 1 cab preserved (133), 13 scrapped
References:

The Córas Iompair Éireann 121 Class were diesel-electric locomotives manufactured by General Motors Electro-Motive Division. These locomotives were in regular service on the Irish railway network until 2002, with the last two remaining in service until early 2008.