Explanation:
The top parachutes are for slowing down the plane from free-falling.
The air cushion is for absorbing the impact to the plane when it is hitting the ground.
If the plane crash on water, it can help the plan to float.
Yes, I know I know, the maintenance cost will rise if we put all those equipment on the planes,
but hey, I strongly believe that when the first person who suggested to have airbags installed in the
vehicles, some other people must had objected that idea because of the maintenance cost
will jack up blah blah blah....
