Teacherjh wrote:

VOR-DME is RNAV too? Now I'm confused.

Not by itself, but RNAV can be based on VOR, DME, and a computer to put it all
together. In fact I believe that was the first system.

Jose

Naw, they took four-course low-frequency range stations and ran them through an
IBM .2 mainframe to derieve RNAV tracks and bearings.