| 摘要 |
A super-pressured high-altitude airship flies in the stratosphere, is propelled against the wind by the power obtained through the photovoltaic conversion of the sunlight, and is used for a large-scale LTA (light-than-air) platform for environmental observation, telecommunication relay, etc. This airship has a super-pressure structure which has a pressure-resistant gas bag in an envelope capable of enduring the rise of internal pressure by allowing no in-flow or out-flow of gas from or to, respectively, the outside atmosphere at the mission altitude. A solar cell is installed on an upper external surface of the envelope. A ventilation space is provided between an installation surface of the solar cell and the gas bag to block the heat transfer from the solar cell to the buoyant gas in the envelope. A fan is provided to forcibly circulate the outside atmospheric air in this ventilation space. The envelope trims the static balance of the airship pitch angle by shifting an on-board weight in the longitudinal direction.
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