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
Preparing to Read
Look at the picture and brainstorm all possible terms related to the topic.
Work in pairs. Give a definition of the term “rocket”. Suggest various areas of application for rockets.
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