CIÉ 121 Class

Specifications
Specifications
Configuration:;
• AAR	B-B
• UIC	Bo′Bo′
Gauge	1,600 mm (5 ft 3 in)
Wheel diameter	40 in (1,016 mm)
Length	39 ft 10 in (12.14 m)
Loco weight	64 tonnes (63.0 long tons; 70.5 short tons)
Prime mover	EMD 8-567CR; 126-129 Re-engined with EMD 8-645E
Engine type	Two-stroke diesel
Aspiration	Roots-type supercharger
Traction motors	EMD D47, axle-hung, nose-suspended, 4 off
Cylinders	8
Transmission	D25 DC generator; DC traction motors
Train brakes	Air and Vacuum

Type and origin
Type and origin
Power type	Diesel–electric
Builder	General Motors Electro Motive Division, La Grange, Illinois, USA
Order number	702667–702681
Serial number	26271–26285
Model	EMD GL8
Build date	December 1960 – January 1961
Total produced	15

Córas Iompair Éireann 121 Class
Córas Iompair Éireann 121 Class
	Preserved 121 Class locomotive (134)
Power type
Type and origin
Power type	Diesel–electric
Builder	General Motors Electro Motive Division, La Grange, Illinois, USA
Order number	702667–702681
Serial number	26271–26285
Model	EMD GL8
Build date	December 1960 – January 1961
Total produced	15
Configuration:;
Specifications
Configuration:;
• AAR	B-B
• UIC	Bo′Bo′
Gauge	1,600 mm (5 ft 3 in)
Wheel diameter	40 in (1,016 mm)
Length	39 ft 10 in (12.14 m)
Loco weight	64 tonnes (63.0 long tons; 70.5 short tons)
Prime mover	EMD 8-567CR; 126-129 Re-engined with EMD 8-645E
Engine type	Two-stroke diesel
Aspiration	Roots-type supercharger
Traction motors	EMD D47, axle-hung, nose-suspended, 4 off
Cylinders	8
Transmission	D25 DC generator; DC traction motors
Train brakes	Air and Vacuum
Maximum speed
Performance figures
Maximum speed	77 mph (124 km/h)
Power output	EMD 8-567CR: 960 hp (720 kW); EMD 8-645E: 1,100 hp (820 kW)
Tractive effort	197 kN (44,000 lbf) starting
Operators
Career
Operators	Córas Iompair Éireann; Iarnród Éireann
Number in class	15
Numbers	B121–B135 (later 121–135)
Withdrawn	1986–2008
Disposition	2 preserved (124 & 134), 1 cab preserved (133), 13 scrapped

The Córas Iompair Éireann 121 Class was a railway locomotive which was 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.