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;de Havilland D.H.9[Aircraft Profile 062] КНИГИ ;ВОЕННАЯ ИСТОРИЯ Название:de Havilland D.H.9 Автор: J.M.Bruce Серия: plane Profile 062 Издательство: Profile guides Ltd Страниц:12 Формат: PDF в rarЯзык: английский Размер: 4.51 Мб Для сайта: Мир книгВ 1917 г. чтобы увеличить боевую мощь авиации Великобритании, потребовался новый бомбардировщик с большим радиусом действия, чем у D.H.4. Прототип самолета Airco D.H.9 был создан в результате модификации модели D.H.4. Он сохранил такие же крылья, хвостовое оперение и похожее шасси, но фюзеляж имел носовую часть более обтекаемой формы, а кабина пилота располагалась непосредственно над задней кромкой нижнего крыла. ifolder.ru.com zero

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Temporary landing of the Moon aircraft on the Earth’s surface for loading: (a) Landing and (b) Takeoff. 25 27 26 36 29 35 37 1 Fig. 32. Using the Moon’s elliptical orbit for a free trip in space of up 71,000 km. Notations: (1) Earth; (25) Moon; (26) cable from Earth to Moon; (27) space vehicle; (29) limit of Earth’s atmosphere; (35) Moon orbit; (36) elliptic orbit of a Moon vehicle; and (37) border of Earth’s atmosphere. For example, if the airplane weighs 15 ton and has an aerodynamic ratio (the lift force to the drag force) equal to 5, a thrust of 3000 kg would be enough for the aircraft to fly for infinity without requiring any fuel.

5 Coefficient K ϭ k /107, [k is ratio of stress/density] Fig. 13. 5. 8 5 10 15 20 25 30 Coefficient K ϭ k/107, [k is ratio of stress/density] Fig. 14. Counterweight [tons] via altitude [thousand km] for ground force 100 kgf (at Earth’s surface) for K ϭ 5–30. ) 17 Earth delivery work of 1-kg load via altitude Delivery work of 1-kg load [million joules] 50 45 40 35 30 25 20 15 10 5 0 0 20 40 60 80 100 120 Altitude [thousand km] Fig. 15. Earth delivery work [million joules] of 1 kg load via altitude [thousand km].

8). The chains of the two transport cable loops have crosssection areas to equal the tensile stress of the main cable at given altitude, and the capabilities are the same as the main cable. Each of them can carry 3 ton force. The total mass of the cable is about 620 ton. The three cables increase the safety of the passengers. If any one of the cables breaks down, then the other two will allow a safe return of the space vehicle to Earth and the repair of the transport system. If the container cable is broken, the pilot uses the main cable for delivering people back to Earth.

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