"Hilton" wrote in message
nk.net...

This is 25 miles from the nearest bit of terrain higher than a
wavetop. Anybody have any idea why there's a MOCA defined?


To define an altitude that ensures navaid reception between those two
fixes?

MOCAs don't ensure navaid reception.


It does within 22 miles of a VOR, and since I don't have the charts in
front
of me (I'm on the West Coast) I was just making a suggestion - I don't
know
how far the relavent VORs are - that's why I phrased my answer as a
question.


Well, if it's "25 miles from the nearest bit of terrain higher than a
wavetop", it must be more than 22 miles from a VOR. VORs tend to be built
on land.