Da or mda ?(again).
Can anyone give me an answer on the old da or mda question with regard to non precision app
I've trawled through a bunch of docs and as far as I understand it approaches with vertical guidance (APV) - or more correctly called now I believe '3D approaches' (Lnav/Vnav, baro Vnav, Sbas etc) - are down to a DA.
Everything else ie nominal vertical profile or '2d approaches' (ndb, vor, loc, lnav etc) is down to an mda.
However, most Jepp NPA publish a 'da/mda' regardless of the type of approach. For instance if if look at any loc or ndb plate it gives a single figure which is called an da/mda.
Which is it then ? A da or mda ? We still add 50ft anyway but it would be nice to get a definite answer.