Originally Posted by
Needles Crossed
Problem is that some holds aren't even within 30 degrees of the outbound track themselves.. Various examples come to mind: In the EDDB ILS07L procedure for instance, the hold axis (020/200) is 68 degrees off the outbound track (312 degrees). In EDDF ILS 07C, the hold axis is 046/226 whilst the outbound is 177 degrees which is 49 degrees off. They must be working to some different maximum angle for such a procedure design.. any ideas?
yes, you're right you should fly into the 30° of the outbound track (from IAF) so you have 2 possibilities :
- for example, if you're from north as you said, you may ask ATC to deviate from your track by doing a kind of "unpublished DME ARC" variation to intercept the outbound track under a better angle.
difficult to explain like this, but let's say you're on track 180 to VOR. about 10NM before, you may ask to open to the right (track 210) and then close 10° each 10° (radial VOR) . Then , to intercept the 030°
Inbound at about 5NM from VOR, then, you'll be in position before flying over the VOR.
- or you just have to enter a hold...as you said. It's longer but ATC will understand.
It's very european actually and complicated. In FAA's world they don't bother.
Wherever you come from, they fly to IAF and turn outbound track then. They don't care about the angle , they considere you'll be still inside protection ! simple and efficient isn't ? no need to think more...