- Jul 1, 2005
- Total Time
I was wondering if anyone knew the significance of the (Y) or (Z) or whatever follows the ILS name on an instrument approach chart? Someone asked me recently and I can't find the answer. I know that if it were a VOR A or B it would mean that there were multiple approaches of that type serving that particular airport but of all the ILSs I've shot I've never seen one called, say for example the ILS Y 19R.