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 ------------------------------------------------------------------------| | RANGE (NM) SELECTED | | PARAMETER |-----------------------------------------------| | | 10 | 20 | 40 | 80 | 160 | 320 | |----------------------|-------|-------|-------|-------|-------|-------| | SQUARE SIDE | 14 | 28 | 56 | 112 | 224 | 448 | ------------------------------------------------------------------------
The range is the diameter of the external scale circle. Data are displayed on the screen surface defined by the circle. The map reference point (MRP) is a lateral flight plan waypoint that is defined as a function of the current MCDU page displayed. If a flight plan page (ACTIVE, TEMPORARY or SECONDARY) is displayed, the lateral waypoint in 2L of the page is the MRP. If 2L does not contain a waypoint, the first flight plan waypoint beyond 2L is selected as the MRP. Displaying a sub-flight plan page (e.g LAT REV, VERT REV, etc...) will not change the MRP. Likewise, automatic reversion to a NEW data page (e.g. NEW WAYPOINT) or DUPLICATE NAMES page will not change the MRP. If any page other than a flight plan page is displayed, the MRP is the TO waypoint of the corresponding ACTIVE (for ACTIVE or TEMPORARY) or SECONDARY F-PLN. If a MRP cannot be determined (e.g. there are no waypoints in the F-PLN), the current A/C position is the MRP by default.

 ND - PLAN Mode Edit Area
 Figure 005

 

 B. Dynamic Data The dynamic data signals may be grouped into several categories. The categories and the signals they contain are defined below.
 (1)
 Parameters reflecting current aircraft state
 Present position - LAT
 Present position - LONG
 Flight path altitude
 Track Angle True
 Track Angle Mag
 Ground Speed
 Wind Speed
 Wind Direction
 A/C gross weight
 Linear vertical deviation
 GPS primary status.

 (2)
 Parameters reflecting current position relative to the active leg of the ACTIVE PRIMARY flight plan Distance to Active WPT Time To Go Desired Track Crosstrack Error Vertical Deviation Angular Navigation accuracy Active Waypoint Ident Final leg course.

 (3)
 Radio tuning parameters
 VOR1 Tuning mode
 VOR2 Tuning mode
 ADF1 Tuning mode
 ADF2 Tuning mode
 ILS/MLS Tuning mode
 ADF1 Frequency
 ADF1 Ident
 ADF2 Frequency
 ADF2 Ident
 VOR Display 1 Frequency
 VOR Display 1 Ident
 VOR Display 1 DME Distance
 VOR Display 1 VOR Course
 VOR Display 1 Magnetic Declination
 VOR Display 1 Mag/True Reference
 VOR Display 2 Frequency
 VOR Display 2 Ident
 VOR Display 2 DME Distance

 VOR Display 2 VOR Course
 VOR Display 2 Magnetic Declination
 VOR Display 2 Mag/True Reference
 ILS Frequency
 ILS Ident
 ILS DME Distance
 ILS Course (LOC) (RWY heading).

 (4)
 MCDU parameters
 V1
 VR
 MDA/MDH
 DH
 Transition Altitude
 Transition Level
 Approach Type
 Landing elevation.

 (5)
 Performance pseudo waypoints
 Level 3 Distance
 Speed Limit Distance
 Required Distance to Land.

 

 

 (6) Grid MORA R This function is enabled or disabled through the OPC file according R to the GRID MORA ACTIVATED software option value. R It allows to determine and display on ND only one value corresponding R to the highest of the Minimum Off Route Altitudes (MORA).
 (7) Specific considerations:
 -However, when VOR 1 and 2 data are output, the FM sends an indication to the EIS of whether the VOR is magnetic or true referenced as provided by the data base. The magnetic declinations of VOR 1 and 2, as provided by the data base, are output as well. If this magnetic declination is not available, the FM computes and outputs the magnetic variation at the VOR based on the VOR position. This ensures a consistent display on the ND between raw VOR data and ROSE heading orientation, which follows the NORTH REF pushbutton switch.
 -The parameters associated with the station not chosen for tuning are output NCD. If neither type of station is tuned, all associated parameters are NCD.
 -There are several digital discrete words transmitted to the EIS. Note that one of these discrete words, start of dynamic data, is used to indicate that a new set of dynamic data follows.

 The Approach Type is only transmitted when an approach exists in the F-PLN and the active flight phase is DES or APPR. Otherwise, the Approach Type is output as "Not Standard Approach" and nothing is displayed on the ND.
　
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