weather radar

Question 1

where do we control WX radar from?

Answer 1

MFDCP

Question 2

what does the vertical profile capability allow?

Answer 2

to see the shape and vertical profile of a thunderstorm

Question 3

what is the max operating altitude?

Answer 3

55,000ft

Question 4

what is the operating temperature range?

Answer 4

-20 to 70C

Question 5

what does the forced standby (FSBY) feature do?

Answer 5

weight on wheels switch inhibits the transmitter when the aircraft is on the ground

Question 6

what is the max horizontal scan angle?

Answer 6

100 degrees

Question 7

what is max vertical scan?

Answer 7

60 degrees

Question 8

what returns will we get on screen?

Answer 8

black, green, yellow, red, magenta

Question 9

what will indicate the transmitting WX radar?

Answer 9

amber TX preceded by white or green WX status depending on selection

Question 10

what does the vertical profile allow?

Answer 10

enables the pilot to see vertical extension of clouds, examine angle of a cells leading edge, check cloud tops and clearly distinguish between ground and weather returns

Question 11

what is the range of tilt?

Answer 11

15 degrees either side

Question 12

can the system display lighting strikes?

Answer 12

no

Question 13

what will tell us the WX radar is in FSBY?

Answer 13

ON GND displayed in the. WX field of MFD

Question 14

when will the radar antenna stop moving?

Answer 14

when set to STBY or RDR OFF

Question 15

what will selecting STBY in the air do?

Answer 15

keep the WX radar in a steady state

Question 16

what will selecting RDR OFF do?

Answer 16

prevents the radar from transmitting and antenna scanning

Question 17

what is WX mode?

Answer 17

normal weather detection mode

Question 18

what is WXA mode?

Answer 18

enables the radar target alert feature in a range from 5nm to 170nm which advises the pilot of a potentially hazardous target directly in front of the aircraft outside the selected range

Question 19

when WXA is selected what will target alert monitor?

Answer 19

monitors 50nm beyond selected range and 10 degrees either side of the aircraft heading

Question 20

what signals us to a WXA target alert?

Answer 20

2 red arcs separated by a black arc

Question 21

what does GND MAP allow?

Answer 21

allows the pilot to use the WX radar as a ground radar

Question 22

what does antenna stabilisation compensate for?

Answer 22

30 degrees in pitch and roll to direct the antenna to the horizon

Question 23

what will we get If stabilisation limits are exceeded by aircraft manoeuvres?

Answer 23

STAB LIMIT

Question 24

what will STAB OFF do?

Answer 24

disconnects information to the AHRS and the radar antenna is according to actual pitch and roll attitude

Question 25

what does TRACK CTL allow?

Answer 25

allows the pilot to change the horizontal WX detection line 50 degrees left and right of the aircrafts track

Question 26

is the gain changeable in WX mode?

Answer 26

no, only in GND mode

Question 27

how is WX radar indication best displayed?

Answer 27

on MFD 2 when pushing the PUSH SEL button on the MODE/TILT knob and selecting WX

Question 28

how do we set the WX radar up for operation ASAP after takeoff?

Answer 28

1. 360 MAP on MFD2
2. TEST with 40NM
3. WX
4. range and tilt as required on MFDCP
5. check WX-ON GND on MFD

Question 29

what should we do if the WX RDR fails during operation in bad weather?

Answer 29

continue flight based on last received information and change flight path to avoid penetration of bad weather