The automatic airship JKZ-40 is an aerostat which can be taken off by static lift generated by lighterthan- air gas (such as helium) filled in the envelop. It can make maneuvering flight and keep afloat in a fixed point through its own power. It has following characteristics, such as spot hover above any geographic position for a long time, great payload, convenient and flexible deployment,
long duration, low cost for manufacture, employment and service. During flying, the airship can carry emergency communications equipments (such as base station at high altitude) to carry out emergency communications in disaster areas. It can also carry high resolution camera and remote sensing devices to quickly obtain real time remote sensing images in disaster areas. It can also
carry optical imaging devices and provide public security surveillance during important activities. Therefore, it is an ideal platform for emergency rescue.