TCAS Flashcards
What symbol does a Resolution Advisory (RA) use?
A red filled square.
What symbol does a proximity traffic use?
A white filled diamond.
What does a yellow filled circle mean on the TCAS display?
This is a Traffic Advisory (TA).
Within what limits will TCAS produce proximity traffic?
Once traffic is within 6nm and +/- 1200 ft of own aircraft altitude.
How many seconds does the pilot have to respond to RA guidance calls?
5 seconds for an initial call.
2.5 seconds for a change/reverse instruction call.
What does a hollow white diamond represent on the TCAS display?
It shows non-threat traffic within the area of display.
If the TCAS display is selected to show an area of 20nm and an aircraft flies within this area, will the TCAS produce an RA or TA?
Not necessarily. It will only present proximity, TA, and RA traffic symbols within 6nm and +/- 1200ft of own aircraft.
When does a TA become an RA?
Once the TA aircraft flies within 15-35 seconds of the closest point of approach (CPA) it becomes an RA.
When does a proximity traffic change to a TA?
Once the proximity traffic aircraft flies within 20-48 seconds of the closest point of approach (CPA) it becomes an TA.
What field of view does the TCAS give when selected 20nm and above?
20 nm in front of the aircraft and 9900ft above and 2700ft below.
What field of view does the TCAS give when selected 5nm and above and below?
5 nm in front of the aircraft and 2700ft above and 2700ft below.
What field of view does the TCAS give when selected 10nm and below?
10 nm in front of the aircraft and 2700ft above and 9900ft below.
Which one of the below is true?
- ) TCAS shows all traffic.
- ) TCAS shows only mode S or higher transponder equipped aircraft.
- ) TCAS shows mode C transponder equipped aircraft.
- ) TCAS shows all transponder equipped aircraft.
2.) and 3.) are correct.
True or false:
TCAS II will give lateral conflict avoiding commands?
False.
When do pilots need to notify ATC of an RA diversion?
ASAP within the permitting workload.
