Garmin G300 for Cessna SkyCatcher, Руководство пилота

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Garmin G300 Pilot’s Guide 190-00921-00 Rev. E
69
Flight Instruments
System
Overview
Flight
Instruments
EIS
COM
Interface
GPS
Navigation
Flight
Planning
Hazar
d
Avoidance
Additional
Featur
es
Integr
ated
Autopilot
Annun/Alerts
Appendix
Index
2.3 VERTICAL NAVIGATION (VNAV)
CAUTION :
VNAV is only a VFR navigation aid and is not intended for
instrument approaches.
The Vertical Navigation Page provides settings for the vertical navigation feature.
These settings create a three-dimensional profile from the present location and
altitude to a final (target) altitude at a specified location.
When the VNAV profile is defined, the pilot is informed of the progress by
message alerts. A magenta chevron (VNAV Indicator) to the left of the altimeter
on the Vertical Deviation Scale shows the VNAV profile, and a magenta chevron
(Required Vertical Speed Indicator (RVSI)) on the Vertical Speed Indicator indicates
the required vertical speed to reach the target altitude.
The Vertical Navigation feature is only available when navigating a Direct-to or
flight plan, and the ground speed is greater than 35 knots.
One minute prior to the initial descent point the “Approaching VNAV Profile”
message appears and the ‘Estimated Time to VNAV’ (on Active Flight Plan Page)
goes blank. The descent angle locks to prevent changes in speed from altering
the profile. The VNAV feature does not take into account any changes in ground
speed that occur during the transition from level flight to descent or climb.
At 200 ft above the target altitude, the “Approaching Target Altitude” message
appears, and the VNAV indicator disappears from the PFD.