when you’ve finished marvelling at this hack, make sure to also check out the home brew, high altitude glider we wrote about a while back. i love this high altitude mischief. if you know of ...

Most amateur high altitude balloon payloads descend back ... We’ve also seen single-use autonomous gliders developed for the same mission.

The glider stayed airborne for about six hours and 35 minutes - holding its altitude at times to steer ... "They would like to take it as high as they can," Mr Trimble told the BBC.

The F-15 jets levelled off to avoid the Duo Discus but the pilot rated the risk of collision was "high ... the glider at the last moment and that the separation had been only 100ft [altitude ...