Flying Backcourse, ADF, and Computer Navigation Fixes | Intricacies of Flying an ILS Approach

It looks like a normal ILS, but this one has some elements you don't see every day.

[johnopalko]

This is where an HSI comes in handy. You don't have to worry about reverse sensing. You always fly towards the needle. The trick is to set your course bug to the front course. It works even if you're flying a localizer back course inbound. There are still a few BC approaches around.

[idratherfly]

Lol I would just land at a different airport

[thebadgerpilot]

I still have a working ADF on my plane. I love using the old school technology and hope to one day soon do an NDB approach in actual IMC (after lots of practice, of course!)

For this, I’d keep the ADF tuned in the whole time

[aviatortrucker]

I never use the movable azimuth in an ADF instrument. The reason for this it was more work and confusing. This is especially true if you are correcting for wind. You would constantly be moving it back-and-forth. The best way of using that instrument is to look at it in terms of degrees off your nose or off your tail and use your DG for bearing identification. One other thing is that crazy term called reverse sensing. There is no such thing. The instrument doesn’t reverse anything. It is inverted orientation. Think of a model airplane or car that is moving away from you. If you move the stick left, the vehicle goes left if you move the stick right the vehicle goes right. Now if the vehicle is coming toward you and you move it left or right it’s still moves left or right of its own orientation. This is opposite of what you see. Kind of driving southbound while holding a map north up. When you see an exit off to your right, it would actually be to your left.

[AVMD]

At what distance do you start the turn outbound 317 to the procedure turn, the only distance listed is remain within 10dme and the distance from the OM to the rwy is 5.4nm, but at what distance do you start your procedure turn ?

[jimallen]

why not use the ADF pointer to fly the outbound of the PT so as to avoid sensing direction concerns? You could still have the LOC up to see it centering but using the Pointer to determine turn direction and magnitude would really help you. As you’d have the LOC up, it would be like doing GPS after FAF on a VOR having Pointer up so as to be legal.

[rubenduma]

Can someone please explain why you have to do the course reversal in this case because it doesn’t make sense at all?

[JB_Hobbies]

When arriving from a direction that is inbound on the final approach course (like in this example), if you are at glideslope intercept at the time you cross that LOM (and you aren’t on vectors), do you have to do a reversal, or can you just proceed straight in down to the DA?

[glennwatson]

In Alaska there are more NDBs then VORs which is why NDBs are still part of the IFR written exam.