That's huge news in the emerging 3D commuting market, because it could make this thing much, much cheaper to get off the ground.

To understand why this thing is such a great idea, let's recap two of the main hurdles that every other eVTOL designer is facing: safety and certification. The safety issue seems huge to us, although many of the eVTOL manufacturers we speak to don't seem to see it as insurmountable. In a total failure scenario, all eVTOLs designed around multiple small rotors have a bit of an issue: they'll simply plummet to the ground.

You can solve this problem using a ballistic parachute that fires out and brings them down gently, but below a certain altitude, maybe 120 feet or so, these 'chutes don't have time to fully open and deploy, leaving these aircraft negotiating what we've been calling a "death zone" every time they take off and land. It's only for a short amount of time, but the consequences of total failure in this zone would be equally total, and just one such crash in the early days of air taxi services would undermine passengers' faith in the entire eVTOL sector.

Then there's certification; in order to operate commercially as all these players intend, not only does each design need to be fully certified, but the FAA and its other equivalent bodies globally need to create entire new classes of aircraft, as well as the regulations required to make sure things are done safely and properly.