曝光台 注意防骗
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In PLAN mode a missed approach or alternate waypoint ‐ is displayed in the 2L field of the
onside MCDU.
• The secondary flight plan is represented by a continuous white line. The ND continues to
display the active flight plan.
• Temporary flight plan
The revised portion of the flight plan is represented by a dotted yellow line.
• Flight plan capture
When the aircraft is off the primary flight plan and is flying toward it in HDG mode with the
NAV mode armed, the ND shows the new active flight plan as a continuous green line if the
FMGC has computed the intercept path.
The part of the flight plan before the interception point shows as a dotted green line.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING / RECORDING SYSTEMS
INDICATIONS ON ND
A318/A319/A320/A321 FLEET DSC-31-45 P 15/72
FCOM 19 AUG 10
(3) Waypoint
The ND can display various kinds of waypoints :
Flight plan waypoints
The ND displays these as green diamonds (white, for TO waypoints). When the flight crew
selects the WPT option on his EFIS control panel, all waypoints other than flight plan waypoints
are displayed in magenta.
Pseudo waypoint
Point of the flight path where the aircraft is predicted to reach a selected altitude or speed.
Pseudo
waypoint Definition
Level symbol (top of climb or level-off position), when the aircraft reaches :
• The FCU-selected altitude (blue arrow), or
• The constrained altitude, if it is more restrictive than the FCU altitude and if appropriate modes are
engaged (magenta)
• It does not appear when the aircraft is within 100 ft above, or below, the selected altitude.
Top of descent symbol, or continue descent symbol :
• White, if DES is not armed
• Blue, if DES is armed.
Start of CLIMB symbol :
• White, if CLB is not armed
• Blue, if CLB is armed.
To be continued on next page
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING / RECORDING SYSTEMS
INDICATIONS ON ND
A318/A319/A320/A321 FLEET DSC-31-45 P 16/72
FCOM 19 AUG 10
Continued from previous page
Pseudo
waypoint Definition
Intercept point symbol :
• White, if only the NAV mode is engaged
• Blue, if DES mode is engaged
• Indicates the point at which the aircraft is predicted to intercept the descent path, if there is any vertical
deviation while the aircraft is in DES mode.
• Speed change symbol (magenta) :
• Indicates the point at which the aircraft will start an automatic acceleration or deceleration from the
current speed to a new computed speed for SPD LIM, SPD CSTR, or HOLDING SPD.
Decelerate point symbol (magenta) :
• Indicates where the aircraft will start an automatic deceleration toward VAPP (and thus switch to the
approach phase). Although the symbol is always displayed, automatic deceleration only occurs if in
managed speed, and NAV or approach mode is engaged.
ALT CSTR symbol set around the constrained waypoint :
• Magenta, when the ALT CSTR is predicted to be satisfied.
• Amber, when the ALT CSTR is predicted to be met
• White, when the ALT CSTR is not taken into account by the FMGS, and NAV mode is engaged.
Energy circle symbol (green arc) centered on the aircraft position and oriented to the current track line.
Represents the Required Distance to Land.
Only displayed if the lateral guidance mode is heading or track, and the current FMS flight phase is in
cruise, descent or approach, and the aircraft is within 180 nm of the destination.
(4) TO waypoint
This is the next waypoint to be overflown.
A318/A319/A320/A321 FLIGHT CREW
OPERATING MANUAL
AIRCRAFT SYSTEMS
INDICATING / RECORDING SYSTEMS
INDICATIONS ON ND
A318/A319/A320/A321 FLEET DSC-31-45 P 17/72
FCOM 19 AUG 10
This area of the screen also shows :
• Waypoint identification (white).
• Track to go (green).
• Distance to go (green).
• Estimated time of arrival (green), assuming the aircraft will fly directly from its present
position to the TO waypoint at the current ground speed.
(5) Navaids
The display uses specific symbols for navaids :
DME or TACAN
+ VOR
VOR/DME
◂ NDB
The symbol appears :
• In green if the navaid is a current waypoint of the flight plan.
• In white if it is the TO waypoint.
• In blue when the navaid is tuned for display either automatically by the FMGC or manually
through the MCDU.
• In magenta when the navaid is not part of the flight plan and is called for display as an option
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A320机组操作手册FLIGHT CREW OPERATING MANUAL 3(123)
