| Budget Amount *help |
¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000)
Fiscal Year 2009: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2008: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2007: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
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| Research Abstract |
The objective of the study is to realize a new type of super pressure balloon of which air-drag is expected to be smaller than that of a conventional stratospheric scientific balloon. Using a lobed-pumpkin structure of design for normal super pressure balloons that will be realized in a very near future, so-called 'tawara' type of super pressure balloon, of which aspect ratio can be variable, was designed. Four scaled super pressure balloons were manufactured and they were tested indoors.
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