KRMN ILS 33- Interesting Approach

Has something to do with the cone of ambiguity, or no-course signal
zone. It gets wider the higher the TACAN aircraft is. There's a chart in
the holding pattern manual that shows the distance vs. altitude, and a
DME fix can't even be used if it's within the specified distance,
because the TACAN-only aircraft won't ever receive it while he's in that
cone.

JPH

Roy Smith wrote:
J Haggerty wrote:

TACAN aircraft cannot hold directly over a
VORTAC or TACAN (unless they also have a VOR).


Why not?

The text "DME or ADF required" is a lot smaller than I'm used to seeing it
and in a different place..
I had just glanced at the chart wondering how one would identify RMN
until I found the text. Great chart--thanks for posting it.
Max T, CFI


Brad Z wrote in message news:NT9rc.85411$536.14236711@attbi_s03...
http://www.naco.faa.gov/d-tpp/0405/09743IL33.PDF

I haven't come across an approach with two separate missed approach
procedures before. Is this even remotely common?

I think I'll add this to my instrument students' training regiment due to
some additional interesting features- teardrop course reversal, intersection
identification using ndb bearings (not using DME), and a lot of stuff to
brief. Some of the approaches down here in central VA are pretty boring.