|Quoting ZBBYLW (Reply 3):|
I think back in the day it was to signify whether a aerodrome had a weather facility or not... Y meaning yes... So for instance CAT4 does not, CZBB does not but CYXX and CYVR do... thats what I've been told anyhow.
|Quoting Skymiler (Reply 6):|
I have also heard that they were modelled from the Canadian National Railways telegraph codes for the stations, by prefixing 'Y' to a code for that city (some cities had multiple codes). These were 2 letter codes, and bears some credence when considered from the railway management's perspective, as in the past, Canadian National and Trans Canada airlines were the same company.
Whether this is true or not, I am not sure ... it could explain "YYZ" for Toronto, as Toronto Union Station was part of a railway jointly owned by CN and CP and was at the very western end of the main line (and thus the subdivision) from Montreal to Toronto. Hence the neutral last letters of the alphabet appended to 'Y', sometime in the late 20's or 30's.
|Quoting NorthStarDC4M (Reply 14):|
For the railroads, YYZ would be Malton or Etobicoke, Toronto's city code is YTO
|Quoting SlamClick (Reply 19):|
Assuming that all must start with "Y" Canada can only identify 676.
|Quoting BE77 (Reply 22):|
Actually, almost all the airports in canada DON"T use the Y terminology.
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