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Confirm understanding: feeder route to IAF. Procedure has PT and missed approach hold at the IAF

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Instrument Rating

I just want to confirm that my understanding is correct.

 

On the KEAR ILS RWY 36 Approach, the feeder route from HSI brings you to CORNO, which is an IAF, as well as the FAF, as well as the missed approach holding fix.

 

If I was assigned the HSI feeder route and "cleared for the approach", is the following assumption correct: when I either reached CORNO or anticipated reaching CORNO, I would turn outbound to course 182, using the localizer for guidance; I'd then fly the procedure turn while remaining within 10NM from CORNO. Is this correct? I wouldn't use the missed approach hold entry to get aligned for the approach?

 

2nd question: would it be valid to use the EAR VOR for lateral guidance outbound from CORNO to fly the first part of the procedure turn? I picked the localizer for guidance, but I suspect the VOR would produce the same result?

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2 Answers



  1. Russ Roslewski on Nov 12, 2019

    Yes, you are absolutely correct in how you’d fly the procedure.

    Correct, the missed approach hold is there for the missed approach, not for other purposes. HOWEVER, the method and form of procedure turn you decided to do is actually up to you. All you are required to do is to stay within 10 miles and make any turns toward the “barbed” side, called the maneuvering side (the west in this case).

    Read AIM 5-4-9a(1) for more discussion on this. It lists several different possible methods to make a procedure turn, the depicted one is just the way it’s generally taught.

    What that means is that you could choose to do a holding pattern to get turned around. However, it would actually be the opposite of the published missed approach hold, since that’s on the East side. Instead, you could do one with left turns – which would be a direct or teardrop entry depending on your preference.

    As for using the EAR VOR, no, it’s not really valid to use it because it’s not published that way. In this particular instance, the VOR is so close to the Localizer antenna that it’s also likely that you’d be fine and nobody would know or care if you did. Do notice that it is the 184 radial off the VOR, not the 182 like the reverse of the LOC course, due to differences in published magnetic variation. Also notice that the DME for CORNO comes off the LOC, so you would get a different value using the VOR. All things considered, and since the LOC has a better, tighter signal, I’d use the LOC course for guidance around the PT.

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  2. John D Collins on Nov 14, 2019

    I agree with Russ but would add one point. The EAR 184 radial is a feeder route between EAR and CORNO and is only used between those two points. It is not aligned with the localizer course although it is close. Beyond CORNO, the procedure uses the localizer.

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