Approach chart minimun altitud interpretation

[aterpster]

Welliewagner:

What does the US have to do with it?

Because course reversals are provided to provide essentially the same approach segment, whether in PANS-OPS or TERPS.

It's a base turn, not a procedure turn. As discussed here:
Base vs. Procedure Turn

You are hung up on symatics. A Base Turn in PANS-OPS is identical to a teardrop procedure turn in TERPS criteria.

Where does it say this? On the plate I'm looking at the line from TUM does not intersect the vertical line at INAT11. In fact it is not horizontal, it slopes downwards on the outbound leg.

It doesn't "say it," it portrays it graphically. The outbound AT NDB 186 bearing begins at not less than 3,100 and slopes downward to the course reversal maneuver completion altitude of 2,200, which is the minimum altitude until established on the localizer inbound.

Also, the teardrop outbound descent is predicated on the AT NDB, not the TUM VOR. The TUM VOR is authorized by the planview note only when the AT NDB is unsuable.