I'm just concerned about how long it'll take before this antifa crap goes deadly. I agree, karma's a bitch and it's funny as hell to see the guy take a board to the kisser...but soon it'll be knives and bullets, and innocents.
It lacks many of the heavy details promised on the production version, like retractable gear, a cockpit, seats, controls, passengers & pilot, and enough range to leave the airport, but other than that, it's just a question of a few details.
The airplane forums are the place to go for the arguments about stability, cross wind capacity, emergency landing when ( not if ) the computers fail and/or/when the power fails.
I'm impressed if they have made the transition from vertical to horizontal flight. Believe it or not that takes MORE power than hovering. Same with going from cruise to hover.
The real problem besides the Unobtainium batteries may be the Legal issues. I am told that it is illegal to fly such a machine with a person onboard in Europe.
It's not designed for me to take off and fly it around. I'd love that. I can't afford it, but I can't afford a Buggati either. It's designed as a robotic air taxi. Robots can't take responsibility, thus the liability is on the operators, and ( I am told ) European Law says, NON! Nein! Nei! O'hi!..........
Pessimism on the viability aside, it's cool looking and I look forward to seeing more.
This one flew indoors by RC first. A LOT of money in developing this one.
These guys started this years ago... here's a vital development step to the above.
These things use redundant motors & props to keep flying if one or more fails. Ask the Drone guys, they know. One issue with any of these flying machines is if the power goes out they don't glide like an airplane, they don't autorotate like a helicopter or gyro plane, so you can't safely, ( if with some skill ) land.
They plummet. ( From the Latin Plumbum, meaning Lead )
The multi copter looks totally impractical. I really don't see the advantage over a helicopter, and I'm sure a fixed wing kicks it's ass in forward flight. No autorotation is a killer for it in my book. The VTOL jet concept looks like it might have potential. Still a killer if you lose all power during a vertical take off or landing though. They kind of have to get to where they have enough flight time to leave an airport too. Makes me wonder why they chose electric. I would think that a bunch of the new small jet engines that are available now could make sense for this concept. I haven't even tried to do the rough calculations of how many turbines you would need to carry a decent fuel load though.