Table 3.4– continued from previous page
Field ID
Description
Wind Dir.
Wind direction in degrees, calculated from gps when drifting.
Wind Speed
Calculated wind speed using gps speed.
UDF 1
User defined field 1. The data shown can be user defined.
UDF 2
User defined field 2. The data shown can be user defined.
UDF 3
User defined field 3. The data shown can be user defined.
UDF 4
User defined field 4. The data shown can be user defined.
UDF 5
User defined field 5. The data shown can be user defined.
UDF 6
User defined field 6. The data shown can be user defined.
Ceiling
Shows the upper altitude of the airspace causing the warning, i.e.
airspace that you are violating or close to violating.
Floor
Shows the lower altitude of the airspace causing the warning, i.e.
airspace that you are violating or close to violating.
Note 1- The NAV considers a thermal has been entered when the integrated vario value is above
0.5m/s and considers the thermal as been exited when the integrated vario goes bellow -1.0 m/s.
Once in the thermal the Gain indicator will keep track of the maximum altitude reached in the
thermal. If the altitude is less than the the max thermal altitude then a negative number will show
the difference from the highest point reached. If the altitude is equal or higher than the maximum
reached then a positive number will show the altitude gained since entering the thermal. The Gain
indicator keeps track of how much altitude is being gained in the thermal. When a pilot enters a
thermal the NAV will reset the Gain indicator to 0 and will start to track how much altitude the
pilot has gained. At a certain point in the thermal the lift may become weaker and inconsistent.
At this point the gain indicator will show altitude loss in this inconsistency. Once the pilot climbs
in the thermal again the indicator will show the gain since entering the thermal.
Note 2- All the internal NAV time calculations are based on UTC (Coordinated Universal Time).
This is also the time saved on the track-log. However, the time displayed in the time field is
calculated adding an UTC offset to the UTC time obtained from the GPS receiver. The
UTC offset
should be defined in the settings menu (see Section
13.2.3
) so that the correct local time is displayed.
Note 3- The TTG field is dynamic and will vary according to the current flight status and type of
task defined. It will show TTG (time to go) before start gate opening, and will then change to
SS
(Speed Section time) which is the time elapsed after the opening of the start. If no start gates are
defined in the task, or no task is defined, then this field will show
Dur
, which in this case is the
time elapsed since takeoff. The takeoff event is triggered when ground speed exceeds 5km/h and a
3D fix is available.
Note 4- The
Altitude
field indicates the absolute height in meters or feet depending on the
setting. This altitude corresponds to the barometric altitude and thus depends totally on the QNH
(absolute pressure at a given moment and location in regards to the correspondent pressure at
MSL).
The altimeter cannot be reset, but can be set using the corresponding menu option (see Section
13.1
).
22
Содержание NAV
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