有人会问:既然能够承受整架飞机重量的降落伞已经存在,但我们为何不给客机装上降落伞呢?在发生紧急情况时,降落伞就能扮演生命拯救者的角色了。这种想法在理论上可行,但不切实际,其中一个重要原因在于降落伞过于笨重。安装降落伞意味着不得不损失客机的大部分有效载荷,以及不得不减少乘客人数。任何用在大型客机上的降落伞都一定非常巨大,一定由多个伞盖构成。这种系统非常复杂而笨重,需要采用多个安全装置以防止无法展开的情况发生。 Some people may ask: Since a parachute that can withstand the weight of an entire aircraft already exists, why do we not equip the aircraft with a parachute? In an emergency, a parachute can play a life-saving role. One such important reason this idea is theoretically feasible but unrealistic is that the parachute is too bulky. Installing a parachute means having to lose most of the payload of the airliner and having to reduce the number of passengers. Any parachute used on a large airliner must be very large and must consist of multiple canopies. This system is very complex and cumbersome, requiring multiple safety devices to prevent unfolding.