-marker beacon indications
-AFS status (engagement status, armed/active modes,...)
- other specific messages from AFS or EFCS.
(2) The instrument Navigation Display (ND) displays the navigation information necessary as the flight progresses, and in the mode chosen by the pilot: Rose, (with NAV, VOR, ILS submodes), ARC, PLAN. This information is:
-Heading and associated selection
-Drift angle/track and associated selection
-Selected course, lateral deviation (VOR, LOC), TO/FROM indication
-Glide slope vertical deviation in ILS mode
-True Air Speed, Ground Speed
-Wind Indication
-Range marks
-Weather Radar image
-Map with flight plan including A/C situation (position, track)
-Waypoints, radio beacons, airports situation in the flight plan (upon manual option selection)
-indication on the map of tuned and selected for display radio stations (VOR/DME, ADF, ILS),
- on manual selection: navigation station frequency or identification, DME distances, VOR/ILS course, ADF and/or VOR bearings (pointers),
-constraints
-chrono indication (elapsed time).
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R **ON A/C 001-049, 101-105, 151-199, 201-299, 301-302,
-TCAS image (display of the intruders plus specific messages).
R **ON A/C 001-049, 051-099, 101-105, 151-199, 201-299, 301-302,
Thanks to the high level of flexibility of the CRTs, the EFIS makes it possible to display, at a given moment, only the information required for the present flight phase.
B. Information Presented on ECAM DUs (Ref. Fig. 003) The upper and lower ECAM screen surfaces are shared in two zones each. The upper ECAM DU is called Engine/Warning (E/W) Display unit. The upper zone (approximately two thirds of the screen surface) shows all the engine primary parameter indications, plus the onboard fuel quantity and the flaps/slats position indications. The lower zone presents various kinds of messages, described in 31-50-00:
-MEMO and aircraft configuration items
-WARNING/CAUTION messages
-TITLES of aircraft system pages related to WARNING/CAUTION.
The lower ECAM DU is called System or Status (S) Display Unit.
The upper zone (approximately three quarters of the screen surface)
shows:
-either aircraft system synoptic diagrams
- or STATUS messages, described in 31-50-00.
The lower zone presents several permanent parameter values such as: TAT,
SAT, UTC, A/C weight, A/C G. LOAD (only when it is excessive) and at last
the selected altitude value expressed in meters on pilot's request.
In normal configuration, without aircraft system failure, the ECAM system improves crew comfort by eliminating the need for frequent scanning of the various system panels for:
-Routine system monitoring: system synoptic diagrams are displayed on the lower DU and automatically adapted to the present flight phase or manually called.
-System parameter monitoring: some system parameters are monitored the whole flight and automatically displayed on the relevant system page when their value drifts out of normal range but well before the warning level is reached.
(1) Engine primary parameter indications For each engine, the primary parameter indications N1, N2, EGT and FF are constantly displayed.
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Ecam Display Units
Figure 003
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Engine management main parameters N1 Limit and corresponding
operating mode, N1 command and/or predictive N1 are also displayed.
For each engine, the predictive N1 is the N1 value which corresponds
to the throttle position.
N1 actual = N1 predictive in stabilized operation.
(2)
Fuel quantity indications The fuel onboard indication is presented next to the engine primary parameter indications.
(3)
A/C configuration information The flaps/slats position (controlled and actual) indications are also presented next to the engine indications.
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The following figure gives a complete block diagram of the EIS system.
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