To reduce clutter on the ND, TAWS inhibits the display of waypoints when it has been
determined that a missed approach has occurred. The waypoints will be re-displayed when
they become part of the active flight plan when the crew activates a missed approach. If the
crew re-links the flight plan or performs a DTO such that the approach legs are again being
flown by FMS, TAWS will display them.
Waypoint idents
The textual Ident of waypoints appears to the right and below each waypoint.
NOTE:
During holding patterns, flight-plan data is suppressed.
Pop-up terrain display
When the situation warrants, the TAWS display will “Pop-Up” automatically, on both ND’s.
The display can be de-selected by pressing the Terrain Select Switch. For TAWS to display
in ANY mode, the weather radar must be on and have the intensity set so the display can be
observed.
Potential terrain conflicts are depicted by a star shaped Terrain Threat Symbol. Both
Warnings and Cautions are alerted with this symbol. A Terrain Warning displays a red star,
while a yellow star depicts a Terrain Caution.
MAP view
In Map view, the aircraft’s position and altitude are represented by the apex of the aircraft
position triangle. This view shows the terrain under the aircraft as seen from above.
This view also displays the FMS flight plan superimposed over the terrain if the aircraft is on
or within the display range of the flight plan.
“GAPs” or “NO LINKS” in flight plans are depicted as no connection between waypoints on
either side of the GAP. Selected heading legs and curved paths such as holding patterns,
procedure turns and DME arcs are not drawn by TAWS and will appear as flight plan GAPs.
In the upper left corner is the FMS source displayed along with distance to the current TO
waypoint. The current FMS Navigation leg is displayed in magenta. Subsequent legs are
white. Waypoint identifiers are selectable through the FMS CDU.
Terrain conflict and OFF-Flight plan maneuvering
In the Map View, the aircraft’s flight path trend will be shown. A dashed magenta line from
the aircraft symbol represents the projected path based on current track and velocities.
If the predicted path encounters terrain that does not provide the Required Terrain
Clearance, a Terrain Caution (yellow star) or Terrain Warning (red star) threat symbol will be
displayed at the closest threat location.
Fokker 50 - Flight Navigation Instruments
To Next Page