ATC
Will single approach type catch on at FAA?
The FAA is considering a Boeing proposal that eventually could replace 18 different kinds of instrument approaches with a single, ILS-like procedure.

The FAA is considering a Boeing proposal that eventually could replace 18 different kinds of instrument approaches with a single, ILS-like procedure. Based on required navigation performance (RNP) and area navigation concepts, the new RNP Rnav approaches would use the aircraft FMS to create procedures that eliminate stepped or non-precision approach paths. In their place, longer stabilized glideslope approaches using ILS-like cockpit guidance and procedures would emerge.

But even the most ardent supporters of the plan agree RNP Rnav will not be easy to implement, nor is it a concept that will become a reality soon. To be useable, RNP must be implemented in an approved–and inevitably expensive–fashion. The bottom line is that, contrary to popular belief, RNP is not for everyone, and will not be so for many years.