WW, I value your insights and your greater aeronautical expertise. Thank you for being willing to share them. If you can be patient with me, could I ask why, in your opinion, a non-rigid envelope like the Argus would have more trouble than the Japanese fusen bakudan of WWII or even Baungartner's envelope in surviving the ascent through the jet stream? With a small proof of concept model I would not try to do a controlled ascent through the tropopause--just screw down the hatches and turn the systems on once you are in the stratosphere. First one I might not try controlled flight at all--just pop up--vent and come down.
I can understand the problems for a rigid design like SkySat. And I know we would have the threat of having payload or prop stripped off--I get that. But, given an uncontrolled ascent and descent with a non-rigid envelope--do you still see problems that aren't obvious? Thanks for your kindness and your patience--and your commitment to the company. Stratospheric regards, IndyJonesOhio.