Cockpit Reference Guide

Garmin G1000 Cockpit Reference Guide for the Cessna Nav III
190-00384-09 Rev. A
SECTION 7 – NAVIGATION
7-16
15) As seen in Figure 7-38, 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 7-39.
Figure 7-38 Approaching Top of Descent (TOD)
Figure 7-39 VDI & RVSI Upon Reaching Top of Descent (TOD)
Required
Vertical
Speed
Indicator
(RVSI)
Vertical
Deviation
Indicator
(VDI)
Target
Altitude
16) Upon reaching TOD, a descent vertical speed is
established which places the VSI pointer in line
with the RVSI as shown in Figure 7-40.
Figure 7-40 VDI & RVSI Showing Correctly Established Descent
Align Indicated
Vertical Speed
with Required
Vertical Speed
Keep Vertical
Deviation Pointer
Centered
17) When the aircraft is one minute from the bottom
of descent (BOD) this is annunciated as shown
in Figure 7-41. Upon reaching the OPSHN offset
waypoint (three miles before OPSHN), the aircraft
will be at 10,000 feet.
Figure 7-41 Approaching Bottom of Descent (BOD) at OPSHN