Questions tagged [rnav]

Questions about RNAV, meaning Area Navigation, which allows aircraft to navigate between waypoints not marked by radio beacons on the ground.

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What is the difference between LNAV/VNAV and LPV minimums on an RNAV approach?

This approach shows two sets of minimums that both have vertical guidance with a Decision Altitude (DA). What is the difference between LNAV/VNAV and LPV, and why does LPV have lower minimums?
3
votes
1answer
3k views

What are RNP and ANP in area navigation?

What are Required Navigation Performance (RNP) and Actual Navigation Performance (ANP)?
4
votes
2answers
444 views

Why do RNAV airways exist?

I assume there's some stupidly obvious reason that I'm missing, but why bother creating RNAV airways when I thought the entire point of RNAV was not needing to fly along a suboptimal preset path? I ...
2
votes
3answers
1k views

What are the “parts” of a SID procedure?

In the ARINC 424 (downloadable from this link), the following information about SIDs procedures is given in the section 5.7 Route Type (RT TYPE): As you can see, it appears to me that a procedure is ...