System Operation
3-84
GNS-X
LS
Flight Management System
Rev. 3
Sep/96
5.
ENTER Key - DEPRESS. Cursor moves to OFFSET field.
6.
OFFSET - If applicable, INSERT value in nautical miles (-99 to
+99 range).
a.
If the offset is prior to the waypoint, enter the range value
and a (-) prefills as a default or
b.
enter a (+), then the range value to indicate the offset is
beyond the waypoint
7.
ENTER Key - DEPRESS. Cursor moves to FPA field.
8.
Flight Path Angle - VERIFY or INSERT (in degrees and tenths,
0.1 to 6.0 range).
NOTE: Direct Flight Path Angle prefills if it is within the valid range
and an ALT is programmed. (
9.
ENTER Key - DEPRESS to accept waypoint entries and return
to VNAV Page 1.
CREATING VNAV PROFILE WAYPOINTS
VNAV profile waypoints (#TOC, #TOD, and #PRESL) are used to
provide a prediction of the position of the aircraft on the vertical flight
path. These are non-enterable waypoints computed by the system
based on current ground speed and vertical speed.
Top of Climb (#TOC)
Top of Climb Altitude is obtained from either the CRUISE ALT
entered by the pilot on the VNAV DATA Page, or from the Altitude
Preselector setting, if available. When the aircraft arrives at the pre-
selected altitude, the system will automatically set cruise altitude to
the pre-selected altitude which will then provide a #TOD prediction.
If vertical climb constraints are programmed, #TOC will automatically
appear as the Vertical To Waypoint when the aircraft laterally passes
within 1 mile the last vertical waypoint on the active flight plan that
has a climb constraint. Once the aircraft has crossed the final climb
constraint waypoint, #TOC will then become the Vertical To
Waypoint. If there are no vertical constraints programmed for climb,
#TOC will be displayed as the first vertical waypoint as long as the
aircraft is in a climb.
When the programmed cruise altitude is reached, #TOC is removed
from the VNAV Flight Plan, and #TOD becomes the Vertical To
Waypoint.
Summary of Contents for GNS-XLS
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