Technology & Innovation

Still waiting for your flying car? Personal drones may take off sooner

September 01, 2016

Global

Still waiting for your flying car? Personal drones may take off sooner

September 01, 2016

Global
Our Editors

The Economist Intelligence Unit

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Personal aviation is more likely to be delivered by autonomous, multi-rotor vehicles than the flying cars predicted by popular culture

Flying cars are the great cliché of modern futurism, a staple of science fiction that has been wished for since the advent of both planes and cars. Inventors have filed dozens of related patents since the beginning of the last century. “Mark my words: a combination aeroplane and motorcar is coming,” Henry Ford is reported to have said in 1940. “You may smile, but it will come.”

Clearly, though, flying cars have yet to take off. And while they might still become a reality, they are unlikely to look like the familiar visions from TV and films, such as the flying-saucer car in the animated sitcom “The Jetsons” or Doc Brown’s DeLorean in the “Back to the Future” movies.

The trouble with flying cars is that the qualities of a roadworthy car and an airworthy plane are very different. A vehicle light enough to fly would be blown off the road; anything heavier would make for a clumsy plane that could barely get off the ground. Still, a number of companies are working on cracking the conundrum, from start-ups such as Terrafugia and Zee.Aero, which is personally funded by Google co-founder Larry Page, to major carmakers, such as Toyota, which has filed at least two patents related to flying cars.

Most prototypes resemble small planes that can taxi farther and faster than normal and can fit on regular roads. One example is Terrafugia’s “Transition” prototype—confidently predicted to launch in 2026—which, in addition to flying, is suitable for a short drive home from the landing strip. 

The vehicle will cost around half a million dollars and will require a pilot’s licence to operate. This is hardly the vision of universal personal aviation that various sci-fi utopias have led us to expect. Vehicle designs that draw inspiration from drones, not planes, may have more success in delivering that vision.

Rotor learning

The past five years have seen rapid innovation in multi-rotor aircraft, in which both lift and direction are provided by individually powered rotor blades. Advances in both sensors and the software that operates the rotor blades mean they can now achieve greater agility in the air than conventional planes or helicopters. The best-known example is the quadcopter drone, typically about the size of a remote-control helicopter, but larger examples capable of carrying heavier loads are in development.

California-based Advanced Tactics, for example, has built a prototype flying truck for use by the US military. The truck, which has ample space for troops and supplies, can drive cross-country at speeds of up to 113 km per hour, but it also has four rotors attached to lift it off the ground. Test flights have so far seen the vehicle reach a modest height of 3 metres, but its makers say it could reach thousands of metres of altitude in the future.

The growing sophistication of unmanned aerial vehicles (UAVs) also holds considerable promise for personal aviation. If flying cars were to pilot themselves, they wouldn’t require as much training on the part of the owner. At the global Consumer Electronics Show in Las Vegas in January 2016 a Chinese company demonstrated a prototype drone which, it claims, is the first capable of carrying a human passenger. The electric-powered quadcopter can fly for 20 minutes, and with its propellers folded it can fit in a single parking spot. But although there is room for one passenger, it remains a pilotless drone: the passenger would have no direct control over its flight, even as a backup.

Autonomous control also means aerial vehicles can communicate with each other and co-ordinate their flight paths for efficiency and to avoid collisions. This intelligent navigation, combined with the reduced need for training or a licence to operate, means that autonomous personal flying machines are more likely to pass muster with both consumers and regulators than the flying cars we were raised to expect. 

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