two dimensional only, avoidance manoeuvres between both aircraft can not be coordinated
three dimensional, your TCAS can generate both TAs (Traffic Advisories) and RAs (Resolution Advisories).
three dimensional, avoidance manoeuvres between both aircraft can not be coordinated
two dimensional only, your TCAS can generate both TAs (Traffic Advisories) and RAs (Resolution Advisories)
- Bearing of the surrounding aircraft.
- Variations of range and altitude.
- Relative altitude.
- Range between the aircraft.
As both aircraft are equipped with operational TCAS II, TCAS will operate normally and issue the appropriate interrogations and perform all tracking functions. TCAS will issue traffic advisories (TA) and resolution advisories (RA), when appropriate.
The TCAS works on autonomously and independently on the interrogation-reply principle. In fact, the system periodically sends interrogation signals to surrounding aircraft transponders. After receiving the interrogation, the intruder’s transponder will reply to the own aircraft TCAS with personal data. This interrogation principle allows the TCAS to determine the range between the aircraft by measuring the elapsed time between the interrogation and the reply. Based on this, the TCAS will internally calculate the collision threat and will issue the appropriate escape maneuvers.
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