World's first manned flight with an electric multicopter

eHang was not the first, but they do seem to have good marketing. German company Volocopter flew a manned demonstration rig in 2011 (the famous pilates ball [1]), and had the first manned flight of the Volocopter multicopter (certified, 18 rotors) in February 2016, with the CEO himself flying [2]. I don't know when the eHang 184 flew first (a video on youtube says Feb 2018 [3]). Personally, I find the design (with 8 rotors in a quadratic arrangement at knee-height, perfect for decapitating pedestrians) atrocious. (The Volocopter blades are above the cabin, as in a helicopter.) And where do you get the 30 minutes endurance for the eHang from? When I divide the range by the cruise speed from Wikipedia, I get about 8 minutes endurance. [1] ▶ this video [2] link [3] link

>50+ years and $100m in R&D tell this to fusion guys :) >no viable prototypes i find this for example as looking very viable back at the time link and actually if you add more props (possible with electric today not so much with gas engines back then) and much-much better control electronics you'll get the modern multi-copters : volocopter prototype ▶ this video and pre-production link >Maybe the approach was doomed from the start, but that didn't stop Moller from promising that you would be commuting to work by air in 10 years for decade after decade. only the last one, m400 was doomed as i mentioned above (and it wasn't actually that clear from the start, m400 was actually pretty logical and reasonable move forward - only after first tests one could see it clear). Put yourself at his place at any point in the history of his flying car development and those 10 years would look like a reasonable estimate. I personally actually say today that in 5 years we'll have the Volocopter likes flying around.

Manned multicopters have already happened. [1] MIT has also demonstrated a variable pitch quadcopter. [2] If they can use plasma laminar detachment and reattachment to somehow simulate a variable pitch propeller, while still getting some weight savings over a design with multiple swashplates, then yes I think it should help the quadcopter design scale up to larger propellers. That's a big if though, since to simulate a negative angle of attack I'm guessing your propeller design would have to be pretty inefficient with all plasma turned off. I'm not entirely sure why you want this though, since the single large rotor is more efficient. There was a novel design a few years ago with one large rotor for lift and three smaller ones to counter torque and provide control. [3] [1] ▶ this video [2] link [3] link