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LESSON 21

Thunderstorm, turbulence and Icing

Objectives: Students are to be proficient in communicating with the ATC whenencountering severe weather like thunderstorm, turbulence and icing

Key points:1. Phrases of thunderstorm, turbulence and icing.

2. Avoid these adverse weather

3. Problems occurred when flying in these condition

Difficult points:1.Phrases for instruction:offset, at ones discretion,circumnavigate,

go round, track out, detour, deviate

2.Phrases for the weather: thunderstorm, lightning, build-up,(light, moderate, severe ) turbulence, an indication of weather;

be caught in, be struck

Teaching materials:Text Book, p183191

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The abstracts of teaching contents1.Phrases of thunderstorm, turbulence and icing.

2. Avoid these adverse weather

3. Problems occurred when flying in these conditions

Teaching method1. Compare and contrast

2. Chinese-English exchange

3. Roll-play practice

Teaching Procedure

1. Review

2. New words and phrases

3. Model exchanges and dialogue

4. Roll-play practice based on the dialogue5. Homework

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Teaching contents

1. Review

2. New words and phrases

1) offset to the left/right circumnavigate go round detour

drift track out deviate

2) CB thunderstorm the whether

buildup

3) struck: strike

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4) fore/ front leading edge/ trailing edge

rear/ aft wing root

5) fuselage elevator flaps fin aileron slat landing gear

yaw damper power plant

6) priority landing 1st priority

7) inoperative trouble out of service failure wrong

out of work fail unserviceable do not work

8) Prohibited area: P Restricted area: R Dangerous area: D

Caution area: C Alert area : A Training area: T Warning area: W

Military operation area: MOA Temporary Reserved Airspace: TRA

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(3) Lightning

be struck by lightning

(4) turbulence

---be caught in

---experience

---encounter---run into

severe moderate light

turbulence chop bump rough

CAT---clear air turbulence

(5) PIPRT

It is possible that the ground ATC request the flight en route report the presentweather which mainly relates to turbulence ice and so on.

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CTL: CCA981 request flight conditions

PIL: CCA981 35m east of UIT FL350 1125 Zcontinuous moderate chop between MNA and

present position.

(6) Ice

severe ice

anti-ice de-ice

request descent

2) Dialogue(1) Using dialogue as the practice to check the students, understanding of what

they have studied in the model exchanges.

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(2) Important phrases to be emphasized

clear of

closing back to the course

keep us advised

get worse

our anti-ice system is inoperative

divert to

request ambulance and first-aid on our arrival

4 Roll-play practice based on the dialogue

1) Teacher asks the students to make dialogues in the weather conditions that may

endanger the flight(thunderstorm, turbulence, wind shear and icing, etc.)

2) Teacher asks the students what procedures they will adopt to avoid bad weather.

Usually, pilots will detour/go round/circumnavigate/offset/track out/divert if theyencounter bad weather in flight.

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5 Homework

1) Substitution exercises on page 187

2) Oral practice on page 188

3) Exercises on page 189

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