The airship establishes the returns posture immediately, the returns cabin and the advancement cabin separates, the retrofire, starts from the outer space to the earth's surface returns.
Retroengine's firing time must the accuracy control, the firing time differ 1 second, will cause the airship point of descent position difference kilometer.
Airships were deployed for various uses in the first world war and once peace returned, designers began to turn their attention to ambitious plans for regular intercontinental flights.
The Chinese Embassy in the United States has lodged stern representations with the U.S. State Department and White House officials over the U.S. attack on a Chinese civilian airship.
The floating airship can collect data at high altitude, which is used to track the regional water cycle and monitor changes in atmospheric composition.