CIE 181 Class

The Córas Iompair Éireann 181 Class locomotives were built in 1966 by General Motors Electro-Motive Division (EMD) and numbered B181 to B192.

Córas Iompair Éireann 181 class
187 at Inchicore, 2002
Type and origin
Power typeDiesel-electric
BuilderGeneral Motors Electro Motive Division, La Grange, Illinois, USA
Order number710408–710419
Serial number31248–31259
ModelJL18
Build date1966
Total produced12
Specifications
Configuration:
​
 • AARBo-Bo
 • UICBo′Bo′
Gauge5 ft 3 in (1,600 mm)
Wheel diameter40 in (1,016 mm)
Loco weight67 tonnes (66 long tons; 74 short tons)
Prime moverEMD 645E
Engine typeTwo-stroke diesel
Traction motorsAxle-hung, nose-suspended, 4 off
Cylinders8
TransmissionElectric
Train brakesAir & Vacuum
Performance figures
Maximum speed120 km/h (75 mph)
Power output1,100 hp (820 kW)
Tractive effort170 kN (38,000 lbf) starting,
119 kN (27,000 lbf) continuous at 18 km/h (11 mph)
Career
OperatorsCóras Iompair Éireann
Iarnród Éireann
NumbersB181–B192 (later 181–192)
Withdrawn1991–2009
DispositionOne preserved (190), remainder scrapped

These locomotives were virtually identical to the earlier 141 Class locomotives, but fitted with the more powerful 645 engine and thermostatically controlled engine cooling fan and inlet shutters. Delivery took place in 1966, with introduction into service happening a short time later.

They were fitted with an EMD 8-645E engine of 1100 hp, weighed 67 tonnes (66 long tons; 74 short tons), and had a maximum design speed of 143 km/h (89 mph) which was restricted to 120 km/h (75 mph) in service. Number 186 was later fitted with an EMD 8-567CR engine of 960 hp (720 kW), as used in the 141 Class locomotives.

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