Development of a tandem balloon system with a super-pressure balloon and a zero-pressure balloon I
- Other Title
- スーパープレッシャー気球とゼロプレッシャー気球を組み合わせたタンデム気球の開発 I(大気球研究報告)
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The tandem balloon system with a super-pressure balloon and a zero-pressure balloon is a vehicle which can fly a long duration flight changing the level flight altitudes. This system requires a super-pressure balloon with good capacity to endure high pressure. A pumpkin shaped 3-m balloon with 20 μm polyethylene films covered by a Vectran net with diamond shapes was developed and showed the excellent capacity to endure the pressure of 9,600 Pa on the ground test. A flight test of a tandem balloon system with a super-pressure balloon of the same model and a 2-kg rubber balloon was performed on June 1, 2011, from the Taiki Aerospace Research Field. It was launched in the early morning and the flight lasted crossing the sunrise. It was found that the temperature of the skin of the super-pressure balloon changed by 30 degrees before and after the sunrise and the lift of a rubber balloon at night flight decreased by 5 % after the launch. These parameters are quite useful to evaluate the required capability for the pressure resistance of super-pressure balloons, and to determine the lift of rubber balloons for future tandem systems. Development to enlarge the super-pressure balloon will be continued to provide the system for future scientific experiments.
- JAXA research and development report
JAXA research and development report 11 1-16, 2012-03
Japan Aerospace Exploration Agency