It's not the first time a Lilium Jet — the company's all-electric vertical take-off and landing (VTOL) device — has taken to the sky but it is the first time the new five seater has taken off and landed, following extensive ground testing. Lilium published a video of a two-seater version's inaugural flight just over two years ago.
The new five-seater is a full-scale, full-weight prototype that is powered by 36 all-electric jet engines to allow it to take-off and land vertically, while achieving "remarkably efficient horizontal or cruise flight," says Lilium
Will the back seat of the air taxi be cleaner than the normal kind?
(Score: 1, Informative) by Anonymous Coward on Friday May 17 2019, @03:28AM
https://transcend.aero/story [transcend.aero]
Looks like a mini-Osprey V-22 for short range executive transport. This one uses an actual jet (combustion) engine to turn the props -- this engine, https://www.pwc.ca/en/products-and-services/products/general-aviation-engines/pt6a [www.pwc.ca] with versions from 500 to 1,900 shaft horsepower...
Their pages note that they looked at a full battery electric, but the 50:1 advantage in energy density between jet fuel and lithium batteries tipped the scales toward a jet turbine, to get a useful city-to-city range. Battery version might be useful for city center to suburban airport, and not much further.
The plane is small enough that they also plan to include a whole-aircraft parachute system. Originally developed for tiny ultralight planes, these are now available on some slightly larger planes and make a novel, relatively untested aircraft design a lot safer.