GNS 530(A) Pilot’s Guide and Reference
190-00181-00 Rev. E
SECTION 11
VERTICAL NAVIGATION
11-3
With the profile set, the vertical speed required (VSR)
is displayed on the Vertical Navigation Page. Expect the
following to occur when using the vertical navigation
feature:
At one minute prior to reaching the initial descent
point, a message “Approaching VNAV Profile”
(Figure 11-5) occurs. The descent (or climb)
angle also locks to prevent changes in speed from
altering the profile.
Figure 11-5 VNAV Profile Message
If selected, the vertical speed required (VSR)
readout on the default NAV and map pages shows
the desired vertical speed to maintain the proper
descent (or climb) angle.
At 500 feet above (or below, for a climb) the
target altitude, an “Approaching Target Altitude”
message is provided (Figure 11-6). The VSR
readout on the Default NAV and Map Pages is
blanked out, at this point.
Figure 11-6 Target Altitude Message