Weather Radar & TCAS

Question 1

What are the operating parameters?

Answer 1

320nm range (display 300nm)
120 degree scanning azimuth (40 degree scan rate per second)
+/- 32 degree tilt range

Question 2

What does the weather radar provide?

Answer 2

Weather
Turbulence
Ground mapping

Question 3

When is turbulence not displayed?

Answer 3

When the range is set to less than 50nm

Question 4

What are the auto features of the weather radar?

Answer 4

Ground decluttering
Smart display in turns
Overflight protection (will display above 22,000ft and show what’s beneath you)
Variable temperature based gain (much less reflective over large areas of water)
Multi scan beam control
Path attenuation alert (within 80nm - will tell you if cannot read behind due to strong radar returns)

Question 5

What are the 3 modes?

Answer 5

Standby, On, Test

Question 6

What is the range for lightning detection?

Answer 6

200nm range at 360 degree coverage

Question 7

How is a Resolution Advisory (RA) depicted?

Answer 7

Red Square

Question 8

How is a Traffic Advisory (TA) depicted?

Answer 8

Yellow circle

Question 9

How is a Proximate Traffic (PT) depicted?

Answer 9

Closed cyan diamond

Question 10

How is Other Traffic (OT) depicted?

Answer 10

Open cyan diamond

Question 11

When are TCAS RA’s prohibited?

Answer 11

Below 1100ft AGL on Take-Off
Below 900ft AGL on landing