WAAS Approach at SFO

[willythepilot]

For those of you who have taken a look at the RNAV (GPS) Z 28R at SFO that goes into effect on 27/10/2005, what do you think? Will there be quite a few more of these WAASers popping up around major airports with established ILS systems very soon?

One thing I notice and like about the new RNAV approaches is the simple and effective layout; holding patterns at the IAF and a straight shot from the MAP to the missed hold.

 

[AV8R_N8]

Is there any good references that explains what all these new approach procedures consist of. For example, what are the differences between RNAV (GPS) Z, RNAV (GPS) Y, and RNAV (GPS)

Thanks

 

[aloft]

Three good places to start: The AIM, Aeronautical Chart Users' Guide and Instrument Procedures Handbook. (I don't know exactly where or I'd point it out--but these three sources are where I'd look.)

 

[casey]

Is there any good references that explains what all these new approach procedures consist of. For example, what are the differences between RNAV (GPS) Z, RNAV (GPS) Y, and RNAV (GPS)

Thanks

approaches that share a common final approach segment, use the same nav source to the same runway are given the Z, Y, etc designators. Differences could be the minimums, inital segment(s), missed, etc. You'd have to look at the charts in each case to figure out what the actual differences are.

And on the subject of interesting new approaches, check out the (semi)new RNAV(RNP) approach at DCA. Curving approach track, and not a constant dme arc, curves in both directions to follow the potomac. http://www.naco.faa.gov/d-tpp/0511/00443RR19.PDF

 

[woodreau]

Is there any good references that explains what all these new approach procedures consist of. For example, what are the differences between RNAV (GPS) Z, RNAV (GPS) Y, and RNAV (GPS)

Thanks

Hopefully this will help clear up the RNAV(GPS) Z, Y, X, etc.

http://www.jeppesen.com/download/aopa/jan01aopa2.pdf

The following Jepp bulletin talks about RNAV(RNP) approaches - the first of which is the RNAV(RNP) 19 into Reagan. It looks like a precision approach to me.

http://www.jeppesen.com/download/briefbull/bulletin_jep05-03_RNP.pdf

 

[Foxcow]

Hopefully this will help clear up the RNAV(GPS) Z, Y, X, etc.

http://www.jeppesen.com/download/aopa/jan01aopa2.pdf

The following Jepp bulletin talks about RNAV(RNP) approaches - the first of which is the RNAV(RNP) 19 into Reagan. It looks like a precision approach to me.

http://www.jeppesen.com/download/briefbull/bulletin_jep05-03_RNP.pdf

The new WAAS approaches do not meet the ICAO Annex 10 requirements for precision approaches. They are called an approach with vertical guidance (APV) and re defined in ICAO annex 6.