Garmin GPS III Pilot - Manual (Page 51)

Capture VNAV Profile— is used to center/re-center the VNAV indicator (see illus-
tration to the right) on the HSI display. To utilize this feature, a GOTO or route must
be in use and a valid vertical navigation profile must be entered on the vertical navi-
gation setup page (see the following page and page 75).
Cancel Capture— is used to return the VNAV indicator to the settings originally
entered on the vertical navigation setup page (see the following page and page 75).
Vertical Navigation
The GPS III Pilot’s vertical navigation feature allows you to create a three-
dimensional profile which guides you from your present position and altitude to a
final (target) altitude at a specified location. Once the profile is defined, message alerts
and additional data on the HSI Page will keep you informed of your progress.
NOTE: To use the vertical navigation feature, your speed must be greater than 35
knots and you must be navigating to a GOTO destination or using a route.
When using the vertical
navigation features, a VNAV
indicator (moving horizontal
bar) will guide you as you
descend to the target altitude.
The Main Menu’s ‘Vertical Nav’
option allows you to define the
target altitude and where it
should occur. The default set-
tings are intended to guide you
to pattern altitudes.
43
REFERENCE
HSI Page Options
VNAV PROFILE
GLIDE RATIO TO TARGET
DISTANCE TO TARGET
DISTANCE TO PROFILE
TARGET ALTITUDE
AIRPORT
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GPS III Pilot B2 4/1/99 2:02 PM Page 43