Rev 1 Mar/2000
KMD 150 Pilot's Guide
83
On entry to Screen 59, if
there is no active user
waypoint the DESTINA-
TION box will read NO
WAYPOINT. You must
have an active user way-
point in order to activate
VNAV Mode. If there is
an active user waypoint
the destination user way-
point name will be shown.
Once in the VNAV
Screen you must enter
the cruise altitude (the alti-
tude 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 user 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 has an internal GPS receiver or to 5000 feet if your unit is in
External GPS mode (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 or AT).
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,
(NAV Mode) Screen will be displayed with the following changes.
E6-B Calculator
Screen 59: VNAV Setup Screen
KMD 150 PG 5/12/00 12:57 PM Page 83