lynnandtonic
commented
9 years ago Makes sense! I'm going to do some more research regarding which came first.
Open jpmckinney opened 9 years ago
lynnandtonic
commented
9 years ago Makes sense! I'm going to do some more research regarding which came first.
Several Canadian codes are describe as being "one of the mysterious codes in which the other two letters were randomly assigned". Like YUL (#54), most of these have a radio beacon that broadcasts the two last letters including:
Source: http://www.worldaerodata.com/nav/Canada.php
I don't know a source to establish whether these beacons preceded the airport or not.