| 摘要 |
PROBLEM TO BE SOLVED: To provide the constitution capable of simply and easily performing climbing, level flight and lowering controls with extremely simple structure and an operating and controlling method therefor, in a soft high altitude airship constituted of soft pressurizing film structure in an airframe. SOLUTION: This airship is provided with an envelope 1 formed by pressurizing film structure and empennages 2. Inside the envelope 1, air chambers 11, 12 having comparatively small volume in a head part and a tail part, an air chamber 13 having large volume in a center lower part, a small gas chamber 14 to be filled with floating gas at a center upper part and a large gas chamber 15 formed in space within the envelope 1 except the air chambers 11, 12 and the small gas chamber 14 are provided. Each air chamber 11, 12 is provided with a pressure governing valve and a pressurizing air blower for making a difference of internal pressure and atmospheric pressure constant. The small gas chamber 14 is provided with a valve for emitting floating gas at the time of lowering. The large gas chamber 15 is provided with a pressurizing air blower for feeding outside atmosphere at the time of lowering.
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