"RossCutlass" writes:

[in response to U.S.-specific information about MSA]

As always, a license to learn.

As I just mentioned in the previous posting, you were (mostly) correct
-- the MSA is operational in Canada. That can confuse U.S. pilots
quite a bit. Be careful with any information you get from these
groups, since most posters are American -- even though U.S. and
Canadian procedures are *mostly* identical, it's the differences (like
airspace, MSA, or VFR circuit-entry procedures) that can come and bite
you.

In some of the approaches you mentioned, such as the Sudbury NDB 22,
the PT altitude is at or below the MSA for that quadrant (even if
other quadrants have a lower MSA), so it makes sense. The ones I find
strange are the ones where the PT altitude is higher than the MSA for
the same quadrant -- for example, the Sudbury VOR 22 has an MSA of
2800 ft in the appropriate quadrants, but a PT altitude of 3500 ft.


All the best,


David