I. What principal structural unit of the airplane extends from the nose to the tail of the machine? 2. What does the fuselage have a streamlined shape for? 3. Are all the fuselages round structures? 4. What kind of skin is the framework covered with? 5. The reinforced monocoque design uses complete metal formers, doesn't it? 6. What types of the fuselage construction are there? 7. What does the word "monocoque" mean? 8. What compartments does the fuselage contain? 9. What is the Semimonocoque design? 10. What are the most vital parts of the pressurised cabin?
Exercise 16. Read and entitle text 2.
Text.
The 737 is a metal low-wing monoplane with full cantilever wing and tail surfaces, semi-monocoque fuselage and fully retractable landing gear. Its two power plants are located under the wings on short struts. The fuselage is a pressurized semi-monocoque structure formed from circumferential frames, longitudinal stringers and skin with "waffle" doublers, which act as tear stoppers. Pressure bulkheads at the forward and ай ends of the fuselage form a pressure vessel.
The fuselage is divided horizontally by the floor, which is built up from beams and panels. The primary materials are aluminum alloys. The floor panels are fiberglass aced honeycomb.
Exercise 17. Read, translate and put questions to the subject of each sentence.
The A-310 is a widebody transport powered by two turbofan engines. CFM-56-5 engines arc installed under the wing. Two additional fuel tanks are installed in the rear cargo hold to provide the additional range. The fuselage has a circular cross section. Basic wing structure consists of left, center and right wing boxes. The main landing gear is a simple, dual-wheel, conventional landing gear designed to increase operational reliability and minimize maintenance.