I know that it might early to ask, but does anyone know if PMDG's upcoming NGX FMS will suppport RNAV (RNP) SAAAR/AR approaches with RF legs? With the airlines like Alaska, SWA, WestJet and others moving rapidly towards the RNP world, NGX's ability to accurate simulate RNAV (RNP) approaches like the examples into KPSP, PANJ, etc. would be a welcome feature. I thought I would put the bug in PMDG's ear about adding this feature/capablity to the NGX's FMS. Addition of this feature would place this simulator well ahead of other similators.If PMDG requires technical assistance to make this happen, please contact me.Best regards,Rich BollWichita, KS

The last I heard is that the ARINC420 syntax, include RF legs, will not be incorporated into the NGX; however, it is too far in advance to be definitive. I too would love to see this feature, and I've asked for a RF-like ability in the existing "macro" syntax but haven't heard if they are giving that a try.

What exactly is all this IAN, ANP and RNAV RNP equipped planes stuff? I have a "general" understanding of some of it, but please fill me in. Also, RF as in the actual radio frequency of stations?

If you search this forum for RNAV RNP or RNAV RNP SAAR or just RNP approaches - there was plenty on this subject. Even going on Google there is a good deal info on the subject. "RF" stands for "radius-to-fix".

What exactly is all this IAN, ANP and RNAV RNP equipped planes stuff? I have a "general" understanding of some of it, but please fill me in. Also, RF as in the actual radio frequency of stations?

RNAV = Area Navigation or navigation without reference to ground based navigation aids, i.e. VOR, ADF, DME/DME, etc.RNP = Required Navigation Performance (a subset of RNAV). RNP is RNAV with performance monitoring & alerting self contained iwthin the navigation system. The system monitor's the navigation performance or ANP and compares it against the Required avigation Performance for the airpsace being operated within. If ANP is > RNP, the system alerts the pilot so that preventative or corrective action may be taken.RNAV (RNP) SAAAR or AR = RNAV Approach Procedure, RNP navigation, with Special Aircraft & Aircrew Authorization Required (SAAAR) or simply Authorization Required (AR)All part of Performance Based Navigation. Best introduction into PBN may be found on the EuroControl website:http://www.ecacnav.com/wbt/pbn/Excellent overview of how RNAV and RNP relate to the future plan for Performance Based NavigationThe B737NG has been LEADING performance based navigation and RNP implementation worldwide. Approaches and departures are being flown into airports which never before could have expected to see airline service in all types of weather condition.A true model of the B737NG really must incorporate the RNP capability of this aircraft.Best regards,Rich Boll

The last I heard is that the ARINC420 syntax, include RF legs, will not be incorporated into the NGX; however, it is too far in advance to be definitive. I too would love to see this feature, and I've asked for a RF-like ability in the existing "macro" syntax but haven't heard if they are giving that a try.

It's unlikely that we'll have ARINC 424 support, but that doesn't mean it won't have support for stuff like this in another form... I'm sure we'll try to support the RNP stuff the best we can, I'll make a note of it with EV...

RNAV = Area Navigation or navigation without reference to ground based navigation aids, i.e. VOR, ADF, DME/DME, etc.RNP = Required Navigation Performance (a subset of RNAV). RNP is RNAV with performance monitoring & alerting self contained iwthin the navigation system. The system monitor's the navigation performance or ANP and compares it against the Required avigation Performance for the airpsace being operated within. If ANP is > RNP, the system alerts the pilot so that preventative or corrective action may be taken.RNAV (RNP) SAAAR or AR = RNAV Approach Procedure, RNP navigation, with Special Aircraft & Aircrew Authorization Required (SAAAR) or simply Authorization Required (AR)All part of Performance Based Navigation. Best introduction into PBN may be found on the EuroControl website:http://www.ecacnav.com/wbt/pbn/Excellent overview of how RNAV and RNP relate to the future plan for Performance Based NavigationThe B737NG has been LEADING performance based navigation and RNP implementation worldwide. Approaches and departures are being flown into airports which never before could have expected to see airline service in all types of weather condition.A true model of the B737NG really must incorporate the RNP capability of this aircraft.Best regards,Rich Boll

Thanks man, although I knew the basics behind it you cleared up some of it for me. I would love to see this in action, to get a better understanding of how everything works. Thanks for the link, I'll check it out.

It's unlikely that we'll have ARINC 424 support, but that doesn't mean it won't have support for stuff like this in another form... I'm sure we'll try to support the RNP stuff the best we can, I'll make a note of it with EV...

Thanks Ryan,Full ARINC 424 support is probably a non-player and I understand that. It's just that RNP is such a important and emerging factor in this aircraft that it would be ashame if it was not simulated to some extent in the NGX version. Thanks,Rich

Ohhhh how I dream of shooting an RNP into PSP (one of my favorite regional airports), that would be such a selling point to me.

Ohhhh how I dream of shooting an RNP into PSP (one of my favorite regional airports), that would be such a selling point to me.

The problem with this is that there is no published RNP approach into PSP. We have been trying to get one for a while now at our company

There are three published RNP approaches at KPSP. They are modelled in my sidstar collection, file pmdg0908.zip over at flightsim.com.

EV mentioned 3 acronyms to me today - IAN, FAC, GP. These are in the simulation ;)