Raim

[GravityHater]

If you are /F (fms), do you need RAIM to complete all RNAV approaches in the database?

Is there a website showing RAIM deficiencies on a map, according to your ETA?

Thanks (for your polite, useful, non-belittling answers)

 

[avbug]

Gravityhater,

RAIM is necesary for all GPS approaches. Part of your preflight briefing should include a request for a RAIM prediction, and you should obtain this same thing from your own GPS/FMS unit before departing, or enroute. Certainly before arriving to the TAA.

I don't know about web sites, but there probably are. You can always ask the briefer. You may also (though not always) receive this information , or information pertaining to the outage or availability, by NOTAM.

 

[SKC]

While I can't remember for sure, I think I remember the US Coast Guard website had both the NANUs and RAIMs for GPS users.

 

[Kingairrick]

Good answers, but I'm not sure they address the question. Can you have a RNAV approach still that is not GPS based? If so, you should be able to do it without RAIM if you are /F instead of /G. I'm always surprised to see people filing /G with FMS'...

 

[cvsfly]

Referencing AIM 5-1-7 - Flight Plan suffixes - I was always unclear about the /E & /F equipment requirements. Without reading the AC 20-129 & 20-130A right now, what is the correct suffix for a single UNS-1M FMS with GPS, VOR, & DME sensor inputs (no IRUs, MFD display, RNAV approach approval, VNAV enroute capability, but not VNAV approach approved? (BE-B200 installation). I guess the /F statement that says a single FMS unit with the equipment requirements of /E (a-d) being met - (c) in particular about dual IRU units. Yes there are RNAV approaches that don't have to use GPS.