Is there anything like this that would be hydrogen powered in the future  The limitation on all these really cool flyers is the batteries.  Where do you see batteries getting to in the future.  I can afford one of these and would purchase one but the limited rang and how long it takes to charge them much less places where you can charge them is holding me back right now.    I have flown ultralights before that were really fun but just a little on the scary side but all I had to do to keep flying is to fill up the gas tank on regular gasoline.  That gave me an almost unlimited range given all the places to get gas plus two of them had a rocket powered parachute to deploy in an emergency but you had to be high enough to,use it.   It always amazed me when people would fly these fast and low basically eliminating the reason for the safety chute and rating unneeded risks with them.  The higher the better.