It's actually very nice to see I'm not the only one who doesn't fully understand the chart made by Jeppesen - nevertheless, it wouldn't be good to use such unclear chart, when you are forced to fly the procedure to minimums in IMC (e.g. ILS inop.), so I've contacted Jeppesen and I've yet to get a response.
Originally Posted by BOAC
I have always viewed the DME/alts as 'advisory'.
Of course, but why isn't the procedure then designed or better said - depicted by Jeppesen so that you reach DA (which in this case is also MDA and OCA, as can be seen in
AIP chart) at or before MAPt, which is usually the case with CDFA non-precision approaches in European countries? Most of the procedures I've seen and flown are designed so that if you're on "glideslope" during CDFA NPA (according to DME vs. altitued table), you are able to get to the published DA before reaching MAPt. I see little point in publishing procedure where you either can't get to published DA, if you maintain published angle of descent, either you can't maintain the angle if you descend to published DA.