IO540
and the reference that this organ has the slightest legal significance is......... where?
Are you suggesting I teach the use of GPS contrary to a CAA safety publication?
I also refer you to CAP773: Flying RNAV GNSS Approaches in Private & GA Aircraft which states that the required approval of the GPS equipment to fly GNSS/RNAV approaches should be clearly stated in the AFM. This, I believe, is also true of en route GPS navigation.
I believe GPS is great, I use it every day, I am not stuck in the dark ages, or dragging myself kicking and screaming into 2010; I also don't believe GPS is evil or illegal;
However, if you are teaching GPS to students who fly GPS approaches or use GPS for en route navigation, then they should be taught that the equipment they intend to use is to be approved for its intended use or it should not be used as a primary means of navigation. I don't believe this is uneducated tosh -
En route nav: RNP is 5
Terminal nav: RNP is 1