Peter wrote:
CAT is not relevant to this because they meet the requirements with INS,
INS does not meed BRNAV requirements. DME/DME does
What is BRNAV called today? Has the carriage requirement gone?
The thing closest to what used to be called BRNAV is RNAV 5. I don’t know what you mean by “carriage requirement”. Of course you must have the proper equipment.
The thing closest to what used to be called PRNAV is RNAV 1. By the way, IIRC, DME/DME does not meet RNAV 1 requirements when you hand fly on raw data – only when you fly using an FD or AP.
The US definitely has similar requirements to Europe for use of GPS in IFRz
FAA equivalent requirements for RNP:
AC90-96 also gave the requirements for a U.S.-registered aircraft to operate under BRNAV/RNAV5 in European airspace but this has now been superseded into AC20-105A.
AC20-138() provides guidance on getting the aircraft equipment and installation certified
