与波音767相比,波音787“梦想飞机”的维修工作将大为减少,这主要得益于新材料(包括复合材料)的应用以及系统的改善。在生产型飞机上,梅西埃一道蒂公司的起落架支撑将采用复合材料,而不是现有起落架所采用的钢质起落架时寿件。机轮之间的大型起落架横梁结构将用钛合金取代钢,作动筒的内缸也是如此。起落架在设计时充分考虑维修性,将其大修间隔确定为12年,而波音777的为10年,波音767的和空客 A330的为9年。机翼后缘襟翼的机械结构采用了简单的下沉式铰链设计,而不是结构复杂的多缝襟翼,因而它只有82个润滑点,而波音767则有200多个润滑点。驾驶舱、电缆,滑轮、顺序阀门和顺序机械结构都采用了固态的电控系统,除了飞行控制外,还包含了前起落架、起落架及其舱门的控制以及飞机配平、增升装置、油门和反推装置、刹车、防滑装置和自动刹车的控制等。美国汉胜公司提供的波音787起动电机比波音767起动电机的可靠性增强了3倍。波 Compared with the Boeing 767, maintenance work on the Boeing 787 Dreamliner will be greatly reduced, mainly due to the new materials (including composite materials) applications and system improvements. On production aircraft, Lionel Messier’s gear support will use composite materials, rather than the existing landing gear used in the life gear. The large undercarriage beam structure between the wheels will replace the steel with titanium, as will the inner cylinder of the ram. Landing gear was designed with full consideration of maintainability, with an overhaul interval of 12 years, compared to 10 years for the Boeing 777, 9 years for the Boeing 767 and the Airbus A330. The trailing edge flaps have a mechanical structure that uses a simple sunken hinge instead of a complicated, multi-slit flap so that it has only 82 lubrication points and the Boeing 767 has more than 200 lubrication points. The cockpit, cables, pulleys, sequential valves, and sequential mechanical structures all feature a solid state electronic control system that includes, in addition to flight control, the control of the nose landing gear, landing gear and their hatch doors, as well as aircraft trim, Throttle and reverse thrust device, brake, anti-skid device and automatic brake control. The Boeing 787 starter motor from Hamilton Sundstrand has a threefold increase in reliability over the Boeing 767 starter motor. wave