Hey you guys,
my father and I had a discussion the other day. We were talking about navigation and GPS systems when I stated that nowadays it is possible to navigate with GPS. My father replied that this would be possible but is currently not allowed by the LBA (the German FAA). All aircraft operating RNAV are getting their data via the inertial reference system and the GPS system is only a backup but still not available for RNAV. So far so good.
What I cannot understand is that there are charts that officially publish GPS approaches, like this one
http://155.178.201.160/d-tpp/1506/00256R9L.PDF
As I understand that, the use of GPS is allowed for RNAV navigation. Is that correct?
I also see a lot of smaller aircraft like Socata TB850, Cessna Caravan, etc. using the GPS to display and follow their flightplan.
Please help me out on this topic.