BendixKing SKYMAP IIIC - Manual (Page 94)

DETAILED OPERATION
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Screen 59: V NAV Setup Screen
On entry to Screen 59, if there is no active waypoint the DESTINATION box will read NO
WPT. You must have an active waypoint in order to activate VNAV Mode. If there is an
active waypoint its name will be shown.
Once in the VNAV Screen you must enter the cruise altitude (the altitude FROM which you
will descend), the final altitude (the altitude TO which you want to descend), the rate of
descent (in FPM feet per minute) and the distance before the upcoming waypoint that you
want to achieve the new level BY.
On entry to this Screen, the FROM value will default to GPS altitude if your unit is a
Skymap IIIC or to 5000 feet if your unit is a Tracker IIIC (or the last set value). The TO
value will default to 1500 feet (or the last set value). The BY value will default to 5.0nm (or
last set value) and the AT value will default to 500fpm (or last set value).
The DESCEND IN box will show an active countdown of the time left before you should
start your descent and will be recalculated if you change any of the four variables (FROM,
TO, BY, AT) or your groundspeed.
If Screen 59 is entered then exited by pressing Key 1, VNAV mode is not activated; the
values are simply retained for use later in the flight.
If Screen 59 is entered then exited by pressing Key 5, Screen 47, 47A or 47B (NAV Mode)
Rev 9 Jul 2006 3-51 Skymap/Tracker IIIC Pilot's Guide