Garmin GNC 420(A) Pilot's Manual & Reference page 151

The following menu options are available:
• Fuel Planning - When equipped with fuel flow
(FF) and/or fuel on board (FOB) sensors, this
option displays current fuel conditions along
the active direct-to or flight plan. The pilot may
also manually enter fuel flow, ground speed (GS)
and (in some instances) fuel on board figures for
planning purposes. Fuel planning figures can be
displayed not only for the currently active flight
plan or direct-to, but also point-to-point between
two specified waypoints and for any programmed
flight plan.
• Trip Planning - Allows the pilot to view desired
track (DTK), distance (DIS), estimated time
enroute (ETE), enroute safe altitude (ESA), and
estimated time of arrival (ETA) information for a
direct-to, point-to-point between two specified
waypoints, or for any programmed flight plan.
NOTe: Point-to-point waypoints, flight plans,
and/or ground speed (default is current GPS-
calculated ground speed) entered on the Fuel
Planning Page automatically transfers to the Trip
Planning Page, and vice versa.
190-00140-20 Rev. K
• Density Alt/TAS/Winds - Indicates the
• Crossfill - Allows the pilot to transfer the active
• Scheduler - Displays reminder messages (such as
GNC 420(A) Pilot's Guide and Reference
theoretical altitude at which the aircraft can
perform depending upon several environmental
conditions, including indicated altitude (IND
ALT), barometric pressure (BARO), and total air
temperature (TAT; the temperature, including the
heating effect of speed, read on a standard outside
temperature gauge). This menu option computes
true airspeed (TAS), based upon the factors
above and the calibrated airspeed (CAS). Also,
this menu option determines winds aloft (the
wind direction and speed) and a head wind/tail
wind component, based upon the calculated
density altitude (DEN ALT), true airspeed, aircraft
heading (HDG), and ground speed.
flight plan, any stored flight plan, a user waypoint,
or all user waypoints between two 400/500-series
Garmin units in a dual-unit installation. See
Section 5.1, Flight Plan Catalog Options and
information following in this section for details.
'Change oil', 'Switch fuel tanks', 'Overhaul', etc.).
One-time, periodic, and event-based messages
are allowed. One-time messages appear once
the timer expires and reappear each time the
GNC 420 is powered on, until the message is
deleted. Periodic messages automatically reset
to the original timer value, once the message is
displayed. Event-based messages do not use a
timer, but rather a specific date and time.
SECTION 9
AUX PAGES
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