Surveillance Flashcards
What aircraft systems detect reactive windshear? When is reactive windshear available?
The PRIMS perform the reactive windshear detection.
It is available:
- Only when the slats/flaps configuration (based on the real position or on the FLAPS lever position) is different from the clean configuration.
- During takeoff from 50’ or 3 seconds after takeoff and until reaching 1,300’
- During landing: From 1,300’ to 50’.
What is TCAP?
Ref: FCOM/Systems/22 - AFS - Flight Guidance / AP-FD Modes/Altitude Acquire ad Altitude Hold/??/??..?
The TCAS Alert Prevention (TCAP) function aims at decreasing the number of undue Resolution Advisory (RA) alerts during altitude capture phases. The TCAP function provides a specific guidance law (named ALT*TCAP) that reduces the vertical speed in the case of surrounding air traffic confirmed by a TA alert.
FCTM/Aircraft Systems/TCAS/Operational Recommendations
The TCAP function enables to reduce undue RA when the aircraft approaches a level off in climb or descent. In the case of surrounding traffic confirmed by a TA, the TCAP automatically reduces the vertical speed to 1 500 ft/min during the last 2 000 ft of a climb or a descent.
Below what altitude are RAs inhibited?
Below what altitude re TAs inhibited?
RAs are inhibited if the aircraft is below 900’ agl in descent or 1100’ agl in climb.
TAs are inhibited if the aircraft is below 400’ in descent and 600’ in climb.
Ref: FCTM/Aircraft Systems/TCAS/General
Below what altitude are RAs inhibited?
Below what altitude re TAs inhibited?
RAs are inhibited if the aircraft is below 900’ agl in descent or 1100’ agl in climb.
TAs are inhibited if the aircraft is below 400’ in descent and 600’ in climb.
Ref: FCTM/Aircraft Systems/TCAS/General
