I used HDPE film 30 microns (0.03 kg/m²) for Solar balloon jumping but Magnus balloons could also work, only for experiments. I have yet a reel of 3 m round film tube. So I cut the two ends then the balloon is made, like on the photo.
I used HDPE film 30 microns (0.03 kg/m²) for Solar balloon jumping but Magnus balloons could also work, only for experiments. I have yet a reel of 3 m round film tube. So I cut the two ends then the balloon is made, like on the photo.