Ice And Rain Protection

Question 1

When should anti ice systems be turned on?

Answer 1

Whenever in visible moister with an OAT of 10 degrees C or below

Question 2

What provides windshield anti ice?

Answer 2

Bleed air from either engine passes a heat exchanger. A temperature controller modulated an air control valve to allow ram air to flow across the hear exchanger, warming the air to 260-280 degrees Fahrenheit.

Question 3

When does the windshield overheat sensor activate?

W/S AIR O’HEAT annunciator

Answer 3

300 degrees F

Question 4

With total DC power failure, will the windshield heat valve fail in the open or closed position?

Answer 4

Open

Will still have anti ice

Question 5

What N2 power setting is required to provide engine anti ice?

Answer 5

70%

Question 6

When does the ENG ANTI ICE annunciator light illuminate?

Answer 6

Cowling less than 220 degrees F

Question 7

When should the de-ice boots inflate and deflate

Answer 7

Inflate within 2 seconds

Deflate within 12 seconds

Question 8

When can de-ice boots NOT be used

Answer 8

-35 degrees or colder