Alef unveils Flying car that could turn into biplane

At a launch event at Draper University in San Mateo, California, a start-up revealed how its flying car hopes to take off.


Alef bills its still-in-development electric vehicle, the Model A, as the first true flying car – a vehicle that it hopes will look like a sleek electric car but be capable of vertical take-off, and able to fly for 110km (68 miles).


According to a BBC report, the firm hopes to compete in a market occupied by well-advanced rivals, such as AirCar and the Pal-V gyrocopter that are already flying and driving.


But Jim Dukhovny, Alef’s chief executive and co-founder, argues most existing vehicles are not strictly flying cars in his opinion.


“A flying car has to be a car, which means it can drive on a regular street, park in a regular parking space. And it also should have vertical take-off,” he told the BBC.


“If you require an airport to take-off, what problem are you solving? And why is this a flying car?”

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The top surface of the Model A’s car-like exterior is a mesh so that air can pass through to eight propellers inside the body which provide lift.

But flying any distance using these alone, without the assistance of wings, would require prohibitive amounts of power.

Alef’s proposed solution is novel – for longer flights the Model A transforms into a biplane.

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After a vertical lift-off, the Model A will turn onto its side, the two-person cockpit swivels so the driver remains facing forward, and the car becomes a biplane with the long sides of the vehicle forming the top and bottom wings.

Alef unveils Flying car that could turn into biplane

The classic biplane shape, with two wings, one on top of each other, is easier to see in the Model A if you imagine the mesh in-between the solid sides being removed. Alef has also produced a video visualising the transition.


A screen capture of the launch video showing an illustration of the Alef in flight


Forbes observed that the way it would fly resembles the Opener Blackfly, an existing vertical take-off electric aircraft.


Bringing flying and driving together adds weight, electric power also means heavy batteries.

“The design is right on the ragged edge of what the physics and technology can do, which is where you would expect it to be,” says aeronautical engineer Professor Steve Wright of the University of the West of England.


The upward-facing parts of the bodywork are made as a lightweight 3D mesh, and if you guessed there are lift rotors beneath for VTOL purposes, you’d be right. As a drone-style airframe, the Model A runs an octacopter setup, with eight propellers, each with maybe a two-foot (61 cm) diameter, and the mesh skin allows air to flow smoothly through the car.


This is about as far as many designers would take the idea, and they’d end up with an acceptable enough multicopter-style flight platform as a result, which would be severely limited in range by its weight and the stiflingly low energy density of today’s batteries. But Alef has designed this thing to be much more interesting. Once you’re airborne, the cabin rotates 90 degrees to the side, so you’re facing sideways. Then, as you go to move forward, the cabin is gimballed to remain level as the airframe tilts around you.


As your airspeed increases, so does the tilt of the airframe, and at a certain point, the side panels of what was once the car become airfoils in their own right. Thus, pilot and passenger find themselves looking at unobstructed panoramic views from a bubble cockpit sandwiched vertically between two wings in a biplane formation. Frankly, it starts looking like something you’d see in Star Wars.


Alef claims it’s been flying full-sized prototypes since 2019 and has demonstrated this machine driving and flying at full scale for its investors – although according to CNET, it’s yet to attempt the full transition to horizontal cruise flight with a pilot on board.


One of many difficulties involved in building a flying car is working out how to meet automotive crash safety standards with a chassis that’s light enough to lift off. That challenge goes double for eVTOL designs that need to lift their entire weight skyward without the benefit of wing lift. Many folk simply go for a three-wheeler platform, since it can be registered as a motorcycle instead, removing most of the red tape.

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