薄膜型高高度気球の新しい放球法の開発

概要

論文の詳細を見る
The ISAS balloon group has been developing and manufacturing plastic balloons made of very thin polyethylene films which can easily reach an altitude more than 40 km with a payload less than 10 kg. To launch the high altitude balloon safely, it is important to develop a launching method. The balloons with thin polyethylene films are normally launched using the dynamic-launching or static-launching method in which the bottom parts of balloons are folded on the ground. These methods depend greatly on the speed and direction of the surface wind at the time of launching, and the most desirable wind speed is less than 2 m/s. Therefore, there are limited opportunities for launching. To launch the thin film balloon easily with very few persons and with certainty, we have developed a new launching method called the packing launch-method. In this method, we pack the uninflated portion of the balloon in a bag. We can ignore the length of balloon in launching since the packed part of the balloon is extended in the sky after launching, and it is possible to launch a large balloon from a launch field of limited size. The packing launch-method is a revolutionary way of launching of high altitude balloons made of thin polyethylene films.
社団法人日本航空宇宙学会の論文
2001-06-05