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Withdrawn	1986–2008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.

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