NavCanada will be changing the Control Zone class around CYTZ from class “D” to class “C”. This upgrade in the class means a few things for those of us in/around Toronto, Ontario:

Because the control zone extends over the entire downtown core, this will affect pilots who like to do city tours.
All flights in the zone must now have a Mode C transponder.
The change takes effect October 20, 2011.

This is good news for everyone as it increases the safety of operating in the downtown area. There have been times where I’ve …