Coal Mining in Puponga

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Puponga at the base of Farewell Spit, New Zealand was home to two coal mining operations over a span of ~70 years. Joseph Taylor was the first to discover a workable seam of coal in 1898









Canadian National Class Z-4-a
 
#6722 at Monkland Station, Montreal 1971
Type and origin
Power typeElectric
DesignerEnglish Electric
BuilderEnglish Electric
Build date1924-26
Total produced9
Specifications
Configuration:
 • AARB+B
 • UICBo+Bo
Gauge4 ft 8+12 in (1,435 mm) standard gauge
Minimum curve264 ft (80 m)
Loco weight201,600 lb (91,444 kg)
(78.925 t; 77.679 LT; 87.000 ST)
Electric system/s2400, later 3000 V DC catenary
Current pickup(s)Pantograph
Performance figures
Maximum speed50 mph (80 km/h)
Power output:
 • 1 hour1,720 hp (1,280 kW)
Tractive effort:
 • Starting50,400 lbf (224 kN)
 • Continuous21,400 lbf (95 kN)
Career
OperatorsMontreal Harbour Commissioners

National Harbour Board

Canadian National Railway
ClassZ-4-a
Number in class9
Numbers101-109 (1924 to 1941)

9180-9189 (1941 to 1949) 180-188 (1949 to 1969)

6716-6724 (1969 to withdrawl)
Withdrawn1995
DispositionNone preserved

The Canadian National Class Z-4-a was a batch of nine electric "boxcab" type locomotives built by English Electric for the Montreal Harbour Commissioners, later National Harbour Board of Canada from 1924-1926. The Port of Montreal decided to de-electrify its' railway system in 1940, and so in 1941 the fleet of locomotives were traded with Canadian National Railway for seven steam switcher locomotives[1]. They were given the classification Class Z-4-a by CN and renumbered. They would subsequently be renumbered in 1949 and finally 1969[2]. Here they complimented the older GE built boxcabs, the class Z-1-a. Both boxcab types served the Mount Royal Tunnel route in Montreal for many years until retirement in June 1995.[3]



See also

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References

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  1. ^ "News Report 132, April 1962, Page 63" (PDF). Canadian Railroad Historical Association. Retrieved 10 June 2022.
  2. ^ "From Preston to Montreal". Railway Matters. Retrieved 10 June 2022.
  3. ^ Radford, William J. (September–October 1995). "The End of the Old CN Electrics" (PDF). Canadian Rail (448). Canadian Railroad Historical Assoc.: 40 pages. Archived from the original (PDF) on 29 July 2020. Retrieved 17 January 2015.

Category:English Electric locomotives Category:Canadian National Railway locomotives Category:Electric locomotives of Canada Category:Bo+Bo locomotives Category:Passenger locomotives