In any situation where the aircraft is unable to continue its flight, these parachutes would prevent the otherwise inevitable crash. They are mounted at the base of the wings and deploy at high speed. Thanks to an elastic opening in the center, they do not tear apart or cause excessive deceleration. Instead, they slow the aircraft gradually. The elasticity of the opening is calibrated to produce the desired rate of deceleration. As the aircraft's forward speed decreases, the opening gradually closes until it is completely sealed once the aircraft has come to a stop in the horizontal direction. At this point, the aircraft descends vertically at a low speed and lands gently on either land or water. This prevents the fuel tanks from rupturing and reduces the risk of post-impact fires, while allowing passengers to evacuate safely.