A320飞机维护手册 AMM AUTO FLIGHT 自动飞行4(43)

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(3) PLAN Mode (Ref. Fig. 005) The EDIT area in PLAN mode is square and varies in size according to the range selection on the FCU. The area of the square is based on a two-dimensional axis with the Map Reference Point (MRP) at the intersection of two axes in the center of the square. The vertical axis is referenced to true North and the horizontal axis is perpendicular to it. The following table defines the distances used for determining the dimensions of the edit area with respect to the range selected on the FCU. The range is the diameter of the external scale circle. Data is displayed on the screen surface defined by the circle. The 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 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. If any page other than a flight plan page is displayed, the MRP is the TO (active) waypoint. PLAN Edit Area Variation:
 -------------------------------------------------------------------------------| | RANGE (NM) SELECTED | | PARAMETER |-------------------------------------------------------| | | 10 | 20 | 40 | 80 | 160 | 320 | |---------------------|--------|--------|--------|--------|---------|---------| | SQUARE SIDE | 14 | 28 | 56 | 112 | 224 | 448 | -------------------------------------------------------------------------------

 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
 Track Angle True
 Track Angle Mag
 Ground Speed
 Wind Speed
 Wind Direction
 A/C gross weight.

 (2)
 Parameters reflecting current position relative to the active leg of the ACTIVE PRIMARY flight plan. Distance to Active WPT Time To Go Bearing To Go Desired Track Crosstrack Error Flight Path Altitude Linear Vertical Deviation Active Waypoint Ident.

 (3)
 Radio Tuning Parameters
 ADF 1 Frequency
 ADF 1 Ident
 VOR Display 1 Frequency
 VOR Display 1 Ident
 VOR Display 1 DME Distance
 VOR Display 1 VOR Course
 VOR Display 2 Frequency
 VOR Display 2 Ident
 VOR Display 2 DME Distance
 VOR Display 2 VOR Course
 ILS Frequency
 ILS Ident
 ILS-DME Distance
 ILS Course (LOC) (RWY heading).

 (4)
 MCDU Parameters
 V 1
 MDA/MDH
 DH
 Transition Altitude
 Transition level.

 (5)
 Performance Pseudo-waypoints Level 3 Distance Speed limit Distance.

 (6)
 Miscellaneous Landing elevation There are three digital discrete words transmitted to the EIS. The labels, formats, bit assignments, and transmission rates of these words are contained in section 22-80.

 

 C. Flight Plan Display There are four configurations for which data will be transmitted : ACTIVE, SECONDARY, TEMPORARY and the dashed F-PLN. These configurations are transmitted only for ARC, ROSE-NAV, or PLAN mode. The display rules for each configuration according to the mode selection are presented in the subsections that follow. However, the following general rules apply to all configurations:
 -All idents and symbols associated with a terminal area procedure except for the last waypoint in a departure or the first waypoint in an arrival are not transmitted if an enroute range is selected unless the waypoint is the active waypoint or the MRP (the origin and destination waypoints are displayed).
 -If there are no flight plan legs, the corresponding flight plan vectors will not be transmitted. For example if the flight plan is the default flight plan (PPOS, F-PLN Discontinuity, End of F-PLN), no vectors are transmitted.
 -A flight plan leg is considered to lie within the edit area for transmission if the origin and/or termination of the leg lies within the edit area.
 (1) ACTIVE flight plan The ACTIVE flight plan display may consist of the primary and alternate flight plans, missed approach, offset path, and engine-out SID.
 (a) Primary (green continuous line when active) The active primary flight plan vectors are transmitted for those legs which lie within the defined edit area under the conditions noted below.
 1_ If ARC or ROSE-NAV mode is selected, these vectors are always
 transmitted.
 2_ If PLAN mode is selected these vectors are always transmitted
　
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