Not long ago, the Canadian government approved the design patent for a new jet aircraft. There is a very interesting design in this plan, which is to modify the innermost layer of a passenger aircraft or a cargo aircraft into several sealed cabins connected from front to back, and install a small explosive device in the interlayer of the joint part of each sealed cabin. This is not a terrorist hijacking bomb, but the latest device designed to ensure the safety of passengers. When the aircraft encounters an emergency in the air, the pilot only needs to press a control button, and the device will explode, completely separating the sealed capsule carrying passengers and crew from the fuselage. Each of these separate parts is equipped with parachutes, shock absorbers, expansion rafts and propulsion jets. These devices will guide the sealed capsule to slowly fall to the ground, thus ensuring the safety of the passengers on board.