How do Advisory Glidepaths Work? | LNAV+V

[seattleraf]

That last point about the placement of the glide path angle is amazing. I had no idea and super helpful as someone that doesn’t use Jep plates.

I wish Garmim/G1000 (not sure if it’s the same on G5) used a slightly different visual representation of the glide path diamond between LPV and LNAV+V. Maybe make it an oval instead of a diamond - just a helpful way to remind yourself that you’re NOT an an LPV and thus there’s an MDA and not a DA/DH.

Of course a good approach briefing should guarantee you don’t make the mistake of treating LNAV minimums as a DA but the fact G1000 shows the calculated glide path exactly the same way as an LPV is a bit of a potential gotcha if you’re not careful.

[Aviatorinfernus]

Nice and very important information. Thanks for sharing this knowledge and keeping aviation safe :)

[ddthompson]

How far out does the advisory glide path begin? Would you be able to pick it up at around 3200 feet at Zakly (or sooner, from the first example) and follow it down, or does it only materialize at the FAF? I’ve not tried this, but will find one of these approaches and take a look next time I can.

[Rodhern]

2:30 "Straight line from SHUEY at 1900' to the missed approach point at the MDA". I don't think thats is what you meant(?).