The Canadian National Class Z-4-a was a batch of nine electric "
boxcab
A boxcab, in railroad terminology, is a locomotive in which the machinery and crew areas are enclosed in a box-like superstructure (from boxcar). It is a term mostly used in North America while in Victoria (Australia), such locomotives have ...
" type locomotives built by
English Electric
N.ยบ UIC: 9094 110 1449-3 (Takargo Rail)
The English Electric Company Limited (EE) was a British industrial manufacturer formed after the Armistice of 11 November 1918, armistice of World War I by amalgamating five businesses which, during t ...
for the Montreal Harbour Commissioners, later National Harbour Board of Canada from 1924 to 1926. The Port of Montreal decided to de-electrify its
railway system
Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a prep ...
in 1940, and so in 1941 the fleet of locomotives were traded with
Canadian National Railway
The Canadian National Railway Company (french: Compagnie des chemins de fer nationaux du Canada) is a Canadian Class I railroad, Class I freight railway headquartered in Montreal, Quebec, which serves Canada and the Midwestern United States, M ...
for seven steam switcher locomotives. They were given the classification Class Z-4-a by CN and renumbered. They would subsequently be renumbered in 1949 and finally 1969.
Here they complimented the older GE built boxcabs, the class
Z-1-a. Both boxcab types served the
Mount Royal Tunnel
The Mount Royal Tunnel (french: tunnel sous le mont Royal, tunnel du mont Royal) is a railway tunnel in Montreal, Quebec, Canada. The tunnel is the third longest in Canada, after the Mount Macdonald Tunnel and the Connaught Tunnel, and connects ...
route in Montreal for many years until retirement in June 1995.
See also
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CN electric multiple unit
The CN electric multiple units were a fleet of electric multiple unit (EMU) railcars built in 1952 by Canadian Car and Foundry (CCF) for the Canadian National Railway for use on the Deux-Montagnes line in Montreal. The cars remained in use until ...
Multiple unit sets used in the Mt Royal Tunnel
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Canadian National Class Z-1-a earlier Mt Royal Tunnel boxcabs built by General Electric
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NZR EO class (1923)
The NZR EO class of 1923 were electric locomotives used on the steep Otira to Arthurs Pass section of the Midland Line in New Zealand. They were primarily needed for pulling trains through the 1 in 33 grade Otira Tunnel which was too long and ...
smaller locomotives built for New Zealand in the same era
References
{{Commons category, Canadian National Railway Z-4-a class locomotives
English Electric locomotives
Canadian National Railway locomotives
Electric locomotives of Canada
Bo+Bo locomotives
Passenger locomotives