------------------------------------------------------------------------------| | LONGITUDINAL MODES | LATERAL MODES |AVAILA-|PHASES| | | | |BILITY | | |---------|-------------------------------|-------------------|-------|------| | | 2 engines | 1 engine fail | Runway (RWY) : | | | | | operational | | - holding of LOC | FD | | | TAKEOFF |---------------|---------------| center line up | | HOLD | | (TO) |Speed Reference|SRS : holding | to 30 ft. | | | | |System (SRS) : | of | - TRACK after | AP*/FD| | | |holding of |Va if Va > V2 | 30 ft. | | | | |V2 + 10 kt |V2 if Va < V2 | | | | |---------|-------------------------------|-------------------|-------|------| |GO AROUND| SRS : holding of Va < VAPP | TRACK | AP/FD | HOLD | |(GA) | | | | | |---------|-------------------------------|-------------------|-------|------| |LOCALIZER| | LOC capture and | AP/FD | ARM | |(LOC) | | track | | CPT | | | | | | TRACK| |---------|-------------------------------|-------------------|-------|------| |APPROACH | Glide capture and track (G/S) | LOC capture and | AP/FD | ARM | | | or | track | | CPT | | | Final descent (FINAL) accor-| Align and roll out| | TRACK| | | ding to the profile determined| or | | | | | by the FMGC | R-NAV approach | | | | | | or | | | | | | VOR approach | | | ------------------------------------------------------------------------------
* (AP) only 5 s after takeoff
(4) AP-A/THR mode compatibility The AFS installed on the aircraft is such that the AP/FD system and the A/THR function always control speed. To do this, the modes of the A/THR system are a function of the AP/FD modes as per the following table:
------------------------------------------------------------------------------| AP/FD MODES | A/THR MODES | REMARK | |-------------------------|-------------------------|------------------------| | V/S - FPA | SPD/MACH | | |-------------------------|-------------------------|------------------------| | ALT ACQ - ALT | SPD/MACH | | |-------------------------|-------------------------|------------------------| | CLIMB/DESCENT | THRUST OR SPD/MACH | | |-------------------------|-------------------------|------------------------| | EXPEDITE | THRUST | | |-------------------------|-------------------------|------------------------| | APPR. FINAL DES | SPD | | | GLIDE | SPD | | | FLARE | RETARD | | |-------------------------|-------------------------|------------------------| | TO/GA | See remark | TO/GA thrust requested | | | | by the FADEC'S | ------------------------------------------------------------------------------
If neither AP nor FD is engaged, the A/THR will be active in SPD/MACH mode only.
C. Operational Use
(Ref. Fig. 006)
The operational use is based on the following principle:
-
the short-term pilot orders are entered through the FCU
-
the long-term pilot orders are entered through the MCDU. This principle leads to two distinct operations : manual and automatic controls.
(1)
Manual control The aircraft is controlled using reference parameters entered by the pilot on the FCU (heading/track, vertical speed/flight path angle, speed/Mach, altitude). These parameters are taken into account (acquisition and then hold) as follows:
-modification of the parameter by means of the corresponding selector knob on the FCU
-pull action on the selector knob.
(2)
Automatic control The aircraft is controlled using reference parameters computed by the FMGC which takes into account the pilot data selected on the MCDU. When you push the corresponding selector knob on the FCU, a parameter is selected in automatic control and the following occurs:
LEVEL CHANGE in Manual and Automatic Control Figure 006
1EFF : 1 1R 1CES ALL 1 11 1 22-10-00 Page 16 Aug 01/05
-the parameter value i shown by means of a dashed line (for altitude a value is always shown)
-a white indicator light comes on near the corresponding reference display.
The table below gives the modes which are available in manual and auto controls.
-----------------------------------------------------
| AUTO CONTROL | MANUAL CONTROL | |------------------------|-------------------------|-------------------------| | | RWY | | | | NAV (FLT PLN) | | | LATERAL | | HDG/TRK | | | LOC | | | | TRK (GA) | | |------------------------|-------------------------|-------------------------| | | SRS (TO/GA) | ALT (AUTO ARMED) | | | PROFILE | VS/FPA | | VERTICAL PATH | - CLB | EXP*(SPEED AUTO CONTROL)| | | - ALT CNSTR | | | | - DESC | | |------------------------|-------------------------|-------------------------| | SPEED | FMGC REFERENCE | FCU REFERENCE | |------------------------|-------------------------|-------------------------| | | RNAV | | | APPROACH | APPR | | | | LAND LOC/GLIDE/FLARE/ | | | | ALIGN/ROLLOUT/RETARD | | ------------------------------------------------------------------------------
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