CIE 001 Class

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Irish Rail 001 Class
Also called: Metro-Vick “A” Class
Builder: Metropolitan Vickers at Dukinfield Works, Manchester
Years Built: 1955-56
Number Built: 60
Replaced By: GM 201
Engine: Crossley HST V8
Re-engined '68-'71 with EMD 12 cylinder 645E (bore-stroke:9 1/16"x12")
Transmission: Electric. 6 Metropolitan Vickers MV137CW/K traction motors.
Wheel Arrangement: Co-Co
Brakes: Westinghouse air brake system for the locomotive
vacuum for the train brakes
Length: 51'0"
Width: 9' 6"
Height: 14'
Weight: 63 tons
Maximum Speed: 75 mph
Engine Horsepower: Crossley - 1200hp (896kw) @ 625rpm
EMD - 1325hp (989kw) @ 800 rpm
1030hp at dry rail
Tractive Effort: 18000lbf (82kN)
Operators: CIE/IR

The Córas Iompair Éireann 001 Class locomotive was the mainstay of mainline passenger and freight train services on the Irish railway network for forty years from 1955 until the mid-1990s when they were replaced by the new 201 Class locomotives.

Initially they were fitted with eight cylinder two-stroke, port controlled Crossley engines. These were loop scavange type, which utilised a patented principle that recycled the normally wasted exhaust-pressure pulse to boost charge air in the cylinder. These produced 1200 bhp at 625 rpm and could do 75 mph. They were originally fitted with sandboxes which were utilised to improve traction with the rail, these were however removed after a few years.

Their Crossley engines proved to be notoriously unreliable from the start [1]. Amongst a plethora of problems were:

  • Unbalanced engines resulting in vibration induced fuel and water pipe fractures
  • cylinder defects
  • generator and motor flashovers
  • excessive water temperature causing shutdowns

This problem was tackled between 1968 and 1971 through the progressive conversion of the entire class with a 12 Cylinder, 1325 hp General Motors engine (a similar process was implemented for the original 201 Class). When built, these locomotives were originally numbered A1-A60, and as locomotives were re-engined, they had the suffix 'r' added to their number. From 1972 the prefix letters were dropped and the locomotives were renumbered 001 to 060.

[edit] Preservation

The first locomotive to be withdrawn was 008 following bomb damage in 1973. The last withdrawal was in 1995, four locomotives of this class have since been preserved as follows:


[edit] Model

The A Class has been made as a 00 gauge kit by Silver Fox Models[[5]].