现代民用飞机研制领域有条铁律,飞机设计必须保证每飞行小时发生一次灾难性事故的概率控制在10-9以内。也就是说,只有至少飞行亿万小时,才有可能发生一次机毁人亡的事故。事实上,这一概率远低于人的自然意外死亡概率(10-6)。为了满足如此严苛的要求,世界各国的民机设计师可是操碎了心。 Modern civil aircraft development of iron law, aircraft design must ensure that every flight hours a catastrophic probability of control in less than 10-9. In other words, only a flight of hundreds of millions of hours at a time could a plane crash be possible. In fact, this probability is far below the probability of a person’s natural accidental death (10-6). In order to meet such stringent requirements, civil aircraft designers from all over the world have broken their hearts.