"Snowbird" wrote in message
m...

If I'm wrong, and the host computer will indeed barf on an
IFR routing which contains a VOR radial-distance to a VOR
not in the database, I wait to be corrected.


It will barf if it is asked to actually process to that fix. If there's
another known fix outside it's area prior to that VOR radial-distance to a
VOR that's not in it's database, no problem.