Refer to 3.2 – Operational Recommendations for TCAS.
7.2.2.3. TAWS FUNCTION
In addition to recommendations provided in 4.2 – Operational Recommendations for TAWS, here are some recommendations specific to the A380 aircraft.
. Fly all flight phases with all TAWS settings to ON (i.e. DEFAULT SETTINGS) except when:
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The airport is not in the TAWS database and the aircraft is within 15 NM from that airport, or
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The approach procedure is known to produce erroneous TAWS alerts.
. Be aware of the mechanism involved in the generation of the vertical terrain view (e.g. along flight plan, along track, along selected azimuth, atmospheric influences on barometric elevations)
7.2.2.4. WEATHER RADAR FUNCTION
In addition to recommendations provided in 6.2 – Operational Recommendations for Weather Radar, here are some recommendations specific to the A380 aircraft.
.
Remember that it may take up to 30 seconds to build up the weather picture at the first weather radar activation (e.g. before take-off run or switching between SYS 1 and 2).
.
Be aware of the mechanism involved in the generation of the vertical weather view (e.g. along flight plan, along track, along selected azimuth, on path and off path weather, atmospheric influences on barometric elevations).
7.3. REGULATIONS FOR AESS
The A380 AESS proposes an integrated solution for surveillance functions with some enhancements. Nevertheless, the AESS elementary functions are quite similar to the non-integrated surveillance functions described in the previous chapter (i.e. transponder, TCAS, TAWS, WXR). Therefore, the operational requirements are the same.
7.3.1. TRANSPONDER FUNCTION
Refer to 2.6 – Regulations for Transponder.
7.3.2. TCAS FUNCTION
Refer to 3.3 – Regulations for TCAS.
7.3.3. TAWS FUNCTION
Refer to 4.3 – Regulations for TAWS
7.3.4. WEATHER RADAR FUNCTION
Refer to 6.3 – Regulations for Weather Radar.
7.4. MANUFACTURERS FOR AESS
Honeywell and AIRBUS jointly developed the A380 AESS to integrate all surveillance systems in one. Figure 7-1 provides a simplified view of the AESS architecture. Functions supported by the AESS are derived from elementary Honeywell products:
-XPDR from TRA 67A Mode S transponder,
-TCAS from TPA 100A TCAS,
-TAWS from EGPWS,
-WXR from RDR 4000 weather radar.
7.5. FUTURE SYSTEMS
7.5.1. AIRBORNE TRAFFIC SITUATIONAL AWARENESS (ATSAW)
The A380 AESS is already capable to broadcast ADS-B OUT data, and is expected to implement the ATSAW application as described in 3.6 – Description of ATSAW. The ATSAW application makes the most of ADS-B IN data to improve the traffic awareness. The interactivity of the ATSAW application will be improved thanks to the interfaces provided by the A380 cockpit (i.e. KCCU).
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