Fill in the gaps with the suitable derivative of the word given in brackets.
1. The practical limit of the aircraft weight are a certain power of engine and a certain fuel ____ (consume).
2. The structure of the aircraft must be as small and light as ____ (safe) and efficiency will allow.
3. The stress man’s ____ (calculate) go to the designer of the part.
4. In one of the ground tests the wings, tail and other units reach maximum load to find out the ____ (resist) to loading.
5. In the test for fatigue strength small loads are applied for thousands of times and many ____ (repeat) can result in collapse.
Speaking
Imagine you are a supervisor of a trainee group. Tell them about plane makers and steps of aircraft designing.
UNIT 12
Rockets
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Preparing to Read
Look at the picture and brainstorm all possible terms related to the topic.
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Work in pairs. Give a definition of the term “rocket”. Suggest various areas of application for rockets.
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