AGK Systems - Icing and Rain Protection

Question 1

What is a Vibrating rod ice detector also known as?

Answer 1

ROSEMOUNT

Question 2

How does an ice detector work?

Answer 2

Constantly vibrates at 40KHz

As ice builds up, vibration reduces

Heater auto switches on to remove ice (Warning light turned on)

Question 3

Pressure Operated Head

Answer 3

Aneroid Capsule connected to a tube is protrudes into airflow

Sensitive to air pressure due to holes in leading edge

Tube pressure causes capsule to expand

If holes are blocked, tube pressure drops

Aneroid capsule contracts, holds warning light on

Thenis heated

Question 4

What are the two seperate systems for Engine Anti-ice

Answer 4

One for engine itself

One for intake area of the engine nacelle

Question 5

Icing range for Jet/Turboprop

Answer 5

Generally +10°C => 20°C Visible Moisture

Question 6

Turboprop Ice Protection

Answer 6

Generally use electrically heated mats

Question 7

Windscreen Ice Protection

Answer 7

Electrically heated
~prevents ice build-up
~improves impact resistance

Considered essential equipment

Glass kept at 35°C

Question 8

Windscreen Wipers

Answer 8

FAST: 120 cycles per minute

SLOW: 80 cycles per minute

The wipers are speed limited