Cockpit Reference Guide

Garmin G1000 Cockpit Reference Guide for the Cessna Nav III
190-00384-07 Rev. A
SECTION 7 – NAVIGATION
7-15
a) Press the VNV PROF Softkey to place the
cursor in the target vertical speed field (VS
TGT) as shown in Figure 7-35.
b) At this point, the descent vertical speed can be
selected, or the FPA can be selected. Turn the
large FMS Knob to select the desired selection
field, then turn the small FMS Knob to entered
the desired value.
Note the information now displayed in the
‘CURRENT VNV PROFILE’ box. Also, note
the offset waypoint and a gray circle labeled
‘TOD’ are now displayed on the map. The gray
circle marks the Top of Descent (TOD). In this
example, after passing the TOD point, vertical
guidance will be provided that will result in
a -3.0 degree FPA descent to an altitude of
10,000 feet at the offset waypoint.
Figure 7-35 Adjusting the Descent
c) Press the ENT Key.
15) As seen in Figure 7-36, the aircraft is approaching
TOD. Note the target vertical speed required to
reach the selected altitude. The Vertical Deviation
Indicator (VDI) and the Required Vertical Speed
Indicator (RVSI) are now displayed on the PFD
as shown in Figure 7-37.
Figure 7-36 Approaching Top of Descent (TOD)
Figure 7-37 VDI & RVSI Upon Reaching Top of Descent (TOD)
Required
Vertical
Speed
Indicator
(RVSI)
Vertical
Deviation
Indicator
(VDI)
Target
Altitude