Ice And Rain Protection

Question 1

What systems have ice protection?

Answer 1

Wings/stab
Air intake
Probes (2 pitot, 2 AOA, 2 static)
Windshields
Propeller

Question 2

Approved for flight into what kind of icing?

Answer 2

Light to moderate

Question 3

Type of air used for anti ice?

Answer 3

P3 stage reduced to 14 psi

Question 4

Boot heat sequence

Answer 4

Stab, inboard lower then upper, outboard lower then upper

Question 5

Max number of boot patches?

Answer 5

No

Question 6

Operating range?

Answer 6

-40 C to + 40 C

Question 7

What signals that anti ice is in use?

Answer 7

5 pressure switches rated at 11 psi

Question 8

What could cause a de ice failure CAWS message?

Answer 8

Low power settings at high pressure altitudes

Question 9

What determines the heat the prop gets?

Answer 9

OAT sensors and timer

Question 10

What ensures the boots remain deflated when not in use?

Answer 10

Generated vacuum pressure

Question 11

Can the engine lip heating be turned off?

Answer 11

No. Always on

Question 12

Inertial separator must be open for…

Answer 12

•Takeoffs and landings on runways cov-
ered with snow, ice, or standing water
• Flight in heavy precipitation
•Takeoffs and landings in dusty or pos-
sible FOD conditionsPILATUS

Question 13

Inertial separator message on CAWS when….

Answer 13

Door not fully open

Question 14

How does the inertial separator door affect performance?

Answer 14

It decreases

Question 15

Is it normal for the inertial separator screen to be iced over?

Answer 15

Yes

Question 16

What happens with the separator door open and prop heat on?

Answer 16

Pusher ice mode…reduces critical AOA by 8 degrees

Question 17

What causes the EIS OAT gauge to flash?

Answer 17

Temp less than 4 degrees and probe heat not on

Question 18

Is there over temp protection for windshield heating?

Answer 18

Yes, beyond 60 C

Question 19

What does the light selection on windshield heat provide? Heavy?

Answer 19

Light…to whole windshield
Heavy…just to the center

Question 20

Where are the oat sensors? Which is the primary

Answer 20

Wing, by AOA sensor. LH is primary

Question 21

Do all 4 props heat at the same time?

Answer 21

No, only two at a time to prevent asymmetry

Question 22

How does anti ice affect Vr?

Answer 22

Rotate at +9 kts

Question 23

How can anti ice affect accelerate stop distance?

Answer 23

Increase by 27%

Question 24

How can anti ice affect takeoff ground roll?

Answer 24

Increase by 30% and total takeoff distance by 32%

Question 25

How can anti ice affect holding performance?

Answer 25

Fuel flow can increase by 25% to 50%

Question 26

How can de ice affect balked landing?

Answer 26

Decrease VS by 100 fpm or 500 fpm for boot failure

Question 27

Landing performance before boot failure

Answer 27

Ground roll can increase by 90% and total landing distance by 55% with no reverse

Question 28

Landing performance after boot failure

Answer 28

Ground roll can increase by 160% and total landing distance by 90%

Question 29

WHat is the flap extension limit in icing conditions?

Answer 29

15 degrees