LESSON 7.RAIN AND ICE PROTECTION

Question

Q1. Aircraft surfaces must be designed to suffer in flight aerodynamic degradation due to the ice formation

Answer 1

A. Yes, always.

Answer 2

B. Yes, but not during take off.

Answer 3

C. No, never.

Answer 4

D. Yes, but not during landing.

Answer 5

Curved and rear-sloping windscreen

Answer 6

Windshield wipers

Answer 7

Rain repellent: for torrential rain conditions

Answer 8

All of the above are correct

Answer 9

All of the above are correct

Answer 10

structural (gust, hail impact)

Answer 11

lightnings

Answer 12

All of the above are correct

Answer 13

Is the Combination of glaze and rime ice

Answer 14

Can not occur today

Answer 15

Take place in clouds with temperature transition from small to large supercooled water droplets.

Answer 16

Options A and C are true

Answer 17

It is a Transparent air free sheet

Answer 18

We can see in flight in dense clouds of small supercooled water droplets

Answer 19

It has an opaque white structure due to air trapped between droplets

Answer 20

It has an opaque white structure due to the viscosity of the types of droplets

Answer 21

Weight increases

Answer 22

Alteration of airfoil shape

Answer 23

Loss of control due to freeze in the joints between control surfaces and wings / tailplanes

Answer 24

All of the above are correct

Answer 25

Ice crystals from sublimation when water vapour freezes

Answer 26

Ice crystals from condensation when water vapour freezes

Answer 27

Black crystaline structure

Answer 28

It does form a heavy blanket but roughens the surface --> increase aerodynamic performances

Zusammenfassung der Ressource

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