Quote:
Originally Posted by dojetdriver
Yep, and those are the NOS charts. But in my civilian airline company issued jepps, they are in there as well. There are also some west coast airports that have them as well. NOTHING on the plates says "for military only".
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You know come to think of it, I've usually seen the Y and Z when TACANs are involved. In both of these plates, the initial segment is nonprecision maneuvering to put a plane on the ILS. I've seen that before with an TACAN arc (like the one depicted).
You mentioned that you have these approaches in your Jepps. Valparaiso/Eglin is a joint military/civilian use airport, right? Or am I off my rocker? If that is true, it could explain some things. Most civ a/c don't have TACAN recievers and would be unable to do this approach unless they had an RNAV unit to follow. The unit would need to meet RNP to be used IFR so they used the Y and Z. When LPV capability was added, the government just kept the same naming system.