FlightPathOBN:
The Airbus and Boeing RNP standard is 2.8...I really dont care if you believe it or not...
I do care what you believe, because your posts on this forum are so often wildly technically incorrect.
You still haven't pointed me and others interested where this Boeing/AB 2.8 vertical path standard is set forth authoritatively.
As you may, or perhaps may not know, where a procedure exists without state source vertical guidance but has straight-in minimums, Jeppesen codes insofar as possible, a 3 degree VPATH. They are a Boeing company. I presume LIDO does the same.
FAA policy for U.S. state-source vertical guidance is 3.0 degrees, whether it be ILS, LNAV/VNAV, or LPV. It can be up to 3.1 for CAT D if necessary for obstacle clearance (slightly more for CAT C) but
never 2.8 degrees.
I presume you do all of your design work outside of the U.S. Are you an FAA-approved third-party terminal procedures designer?