Pantuo Aviation unveils China's answer to the Lilium Jet
New render images and details have emerged on our favorite Chinese "I can't believe it's not Lilium" eVTOL air taxi project. The Pantuo Pantala Concept H, out of Shanghai, might look like the Lilium, but it promises to hit faster cruise speeds.
The manta ray shape, the large rear wing with upswept tips, the front canards, the great banks of small electric jets arranged along the wings ... much of Pantuo's concept might be hard to tell apart from the beautiful Lilium Jet from Germany.
But there are key differences here. Where Lilium tilts only its propulsion pods, the Pantala is designed to tilt its whole wings. Where Lilium is running 36 tiny electric jets and pushing a small fan philosophy, Pantuo is hedging its bets with just 22 fans, each with a much larger diameter.
The benefit of larger fans, Lilium tells us, is more energy-efficient hover. The drawbacks are tougher scaling, more noise, and less efficient cruise thanks to a bit of extra drag in horizontal flight. So if this thing gets built, perhaps we'll get a chance to verify those claims.
Performance figures won't be immediately comparable, since Pantuo is running a standard five-seat cabin while Lilium has expanded its launch aircraft to a seven-seater. But Lilium promises a 250-plus km (155-plus mile) range at 280 km/h (175 mph), and Pantuo says the Pantala Concept H will match that range, but go faster than 300 km/h (186 mph).
That's about all the detail we've got at this stage. It should be stressed that Lilium is one of the eVTOL world's most advanced projects, with several hundred million dollars in the bank, several hundred employees, and multiple flight tests of multiple prototypes under its belt, to name a few of its achievements. Pantuo has some ripping renders here, but if they've so much as built a remote control prototype, they're not telling anyone at this point.
On the other hand, where EASA and the FAA are pushing an extremely cautious approach to flight testing, the Chinese authorities seem to be letting eHang off the leash early to take the public around in manned flights all over the country.
So perhaps the runway for Pantuo will be somewhat clearer than what Lilium is facing with the European authorities – not that runways will be matters of great concern to the eVTOL sector, although both of these aircraft seem capable of using them where they're available for efficient conventional takeoff and landing.
Check out a short video below.
Source: Pantuo Aviation
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With no thrust amplification is hard to believe will work efficiently.
You need to move a large amount slower can take 25% of the power/lb of lift.
Not mentioned is such ducts have drag themselves. There is a reason helicopters have only 1 or 2 large rotors, 5x the lift/kw. You can't give up that much energy and be viable with multi-copters, etc.
Tilting the whole wings looks good, but they should put control surfaces in the fan air-streams, likely best around the perimeters of the duct outlets, for better agility.
Many commenters below seem to be very knowledgeable people about what it takes to makes these things fly.
I wonder if you guys think the guy that developed the Blackfly got it right. Sure loos like it. https://www.youtube.com/watch?v=FI8AemQcclY
Now reanimated distributed electric propulsion.
The key design feature of a configuration like this could/ should be variable nozzle geometry - have they got this going?? Large fans TICK, high pressure ratio DUBIOUS, Variable Nozzle ??