Tom,
There are some RNP transition to GLS final procedures out there, with a 15'+/- vertical accuracy, and even to CAT III Autoland, but the RNP 0.003/0.006nm horizontal containment I have not seen allowed. (that is a total width far less than the wingspan, which does not make sense)
Do you know where that is promulgated?
I would certainly like to understand your definition of REAL RNP. It appears that you are speaking of 3rd party custom RNP design, which includes EO and Departures, not the FAA/ICAO all engine approach RNP, 18 degree bank angle, and uncompensated baro, etc (and no DEP).
Is this what you are saying?
Last edited by underfire; 10th Sep 2013 at 19:55.