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What does the IRS do

It interfaces with the IRU, the MAU, GPS, and the ADC to provide airplane

Position
Ground speed
Heading
Altitude

1

How many IRS's

2

2

How long for the IRS to align

Up to 17 minutes

3

How many satellites for the gps to work,

5

4

What is FSBY

Forced standby mode


Prevents wx radar from scanning in ground

5

How to override FSBY

Both pilots must select FSBY OVRD. Or

One pilot must select stab off 4 times in less than 3 seconds

6

What is the radar target function

Scans 7.5° in front of airplane and warns crew of hazardous wx beyond the selected range up to 200 miles

7

What does SECT FUNCTION DO

Reduces radar sweep to 30° and 24 sweeps per minute

8

What is normal radar sweep

60°. And 12 sweeps per minute