Show that foil balloons can float at altitude. Previous pico flights have shown that you can carry out low altitude flights with foil balloons however each time one balloon has burst resulting in descent. The current thinking is that the reason we havent' previously achieved float is that the balloons have had too much lift, they reach burst altitude before float altitude. For this flight the aim is to carefully get a slow ascent rate of approximately 0.5m/s.

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