Originally Posted by roudaboutway
Aren't NPA's that have advisory vertical guidance calculated and provided by onboard equipment, 3D approches? regardless of a DA or MDA?
They may be
considered to be 3D approaches and flown as such, but it's up to Bloggs (or his company) to ensure he doesn't go through the
MDA while doing his pseudo 3D approach and missed approach.
A Baro VNAV ie APV has a proper/true/real DA published. No mucking around with adding 50ft to the charted MDA to give a Derived DA and all that bla bla bla.