C.B, please have a closer look at Jeppesen plate 16-1 YPKA on lateral & vertical profile VPA is depicted in brakets (3,00) starting from FN08Y till EP08 whereas neither VOBZ bor ZMUB do have it depicted this way. I dunno how to copy paste it here perhaps someone else will be helpful. However here's something to think about
:
The GPS Approach Overlay Program is an authorization for pilots to use GPS
avionics under IFR for flying designated nonprecision instrument approach procedures, except LOC, LDA, and simplified directional facility (SDF) procedures. These procedures are now identified by the name of the procedure and “or GPS” (e.g., VOR/DME or GPS RWY 15). Other previous types of overlays have either been converted to this format or replaced with
stand-alone procedures. Only approaches contained in the current onboard navigation database are authorized. The navigation database may contain information about nonoverlay approach procedures that is intended to be used to enhance position orientation, generally by providing a map, while flying these approaches using conventional NAVAIDs. This approach information should not be confused with a GPS overlay approach (see the receiver operating manual, AFM, or AFM Supplement for details on how to identify these approaches in the navigation database).
NOTE: Overlay approaches are predicated upon the design criteria of the ground-based NAVAID used as the basis of the approach. As such, they do not adhere to the design criteria described in paragraph 5-4-5k, Area Navigation (RNAV) Instrument Approach Charts, for stand-alone GPS approaches.
