It’s definitely a hard problem to solve.. I have a lot of experienced people helping me (y’all included) so I hope I can manage it . My current model is predicting about 9 hours of battery endurance so we will see how it does. I wouldn’t even be trying without the help of Albion and a few others - our advantage seems to be the prandtl wing and the fact that we are starting simple and cheap - hopefully it’s enough but even if it isn’t it’ll be a fun project. I’ll be sure to update you all once I start building and testingPsel with a glider endorsement.. No need to explain wave, how to predict / find / use, just know it's harder than the books indicate from experience. Or I am a lousy pilot. Or both.
Otoh, once every so often, we get someone like you who wants to do a duration or altitude remote aircraft. Never get to see the result of their efforts come to fruition.. at least you don't need a pressure suit.