"Steven P. McNicoll" wrote in message link.net...

The problem with navaid radial/distance is that it relies on the navaid
location being known to the flight data processing computer. If the
computer doesn't recognize the base fix it won't process it.

Steve,

How does the flight data processing computer handle direct VOR
routing between VORs it doesn't recognize? Does it barf on that
too, or is this barfing specific to VOR radial-distance?

Thanks
Sydney