I just completed a trip to Pittsburgh and back, where the utility of flib-flying IFR and WAAS GPS was reinforced. I do see that they both offer vertical navigation by your explanation above.There have been a few threads recently about training in or owning VOR-only equipped aircraft for IFR flight. Is the difference between say Porland's GPS X 28L and GPS Y 10R Approaches. So if you are able to answer this in a few words.I dont want to take up to much of your time lol. I see most major airports use GPS either X or Y Approaches So I know these have vertical guidance. So you can instantly know that these will only offer lateral guidance with no vertical Thanks !! This is great. Any approach plate that has a low alphabet letter like A,B,C or D after it indicates that it only offers circling minimums. That's how you'll know on future approaches. Since your approach only has "CIRCLING" listed, there is no vertical guidance offered. Yes, If the approach had vertical guidance (glide path) it would say LPV or LNAV/VNAV in the landing minimums section of the approach plate. So you can instantly know that these will only offer lateral guidance with no vertical path. Is it published somewhere on the Approach plate that this RNAV APPR does not have a GS? If so where do I look? Had you been in the soup still and unable to go visual, you could have legally and safely dropped down to that altitude rather than leveling at 9860 feet. The approach plate allows you to descend to circling minimums after 3 NM to NEPRY, or down to 8900 feet. So I just leveled out around 9860 Feet thinking the GS would catch up and start me down. So I was guiding my self down all the way till around 3 NM to NEPRY 9860 feet. It is not an LPV or LNAV/VNAV approach, so it only offers lateral guidance with no vertical guidance, hence your GPS box wouldn't send a glide path signal to your instruments. The approach you were on at KEGE, the RNAV(GPS)D has only CIRCLING minima. There is also one other RNAV approach type, LNAV+V that offers an advisory only glide path, not approved, so you need to use LNAV minima for these. (Technically, to pick nits, the term glide slope is specific to ILS or ground-based electronic components that emit a fixed angle signal, so for RNAV/GPS approaches the vertical guidance is termed a glide path.) The only RNAV approaches with glide paths are LPV approaches and LNAV/VNAV. Not all RNAV approaches offer vertical guidance or a "glide path". Thanks for any light you can shed on this. Model, because it works on several others. This flight not display any GS ? Is it published somewhere on the Approach plate that this RNAV APPR does not have a GS? If so where do I look? Or is it possible itĬould be just an X-Plane thing, where the X-plane platform just did not enter all the GPS APPR information into the coding. So my question is i guess, most of the other flights I do in this aircraft will show a GS even in RNAV.why did So I was guiding my self down all the way till aroundģ NM to NEPRY 9860 feet. I selected the RNAV / GPS "D" 25 Approach (IAF) Kremmling VOR. I Just select the GPS Approach and when I see that I'm under the GS I press APPR the same way you would on an ILS APPR.Īll the plane will start to descend with the GS marker. So with the majority of RNAV Approaches there is a RVAN Glide Slope. For the longest time, I have pretty much restricted myself to either an ILS Approach So I just started using RNAV / GPS Approaches.
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