• 4 minutes Ten Years of Plunging Solar Prices
  • 7 minutes Hydrogen Capable Natural Gas Turbines
  • 10 minutes World looks on in horror as Trump flails over pandemic despite claims US leads way
  • 13 minutes Large gas belt discovered in China
  • 2 hours 60 mph electric mopeds
  • 47 mins COVID 19 May Be Less Deadly Than Flu Study Finds
  • 27 mins US-China tech competition accelerates: on Friday 05/15 new sanctions on Huawei, on Monday 05/18 Samsung chief visits China
  • 6 hours China to Impose Dictatorship on Hong Kong
  • 11 mins Russia loses its chance to capture the EU gas market
  • 21 hours Norway horrified as new rates make EV charging prices higher than petrol
  • 1 hour Why 2030-Isn.t-The-Magic-Year-For-Electric-Vehicles
  • 36 mins Monetary and Fiscal Policies in Times of Large Debt:
  • 36 mins So the President is on that Hydroxy
  • 9 hours Payback Time: Republican Senators turn the tables on Democrats. The difference is the Republican investigations are legit.
  • 12 hours Iran's first oil tanker has arrived near Venezuela
  • 2 hours DEFIANCE – There are More of Us Than Them
  • 20 hours Ventura County to Replace Natural Gas Generation with Battery Storage
Green Futures

Green Futures

This article originally appeared in Green Futures magazine. Green Futures is the leading international magazine on environmental solutions and sustainable futures, published by Forum for…

More Info

Premium Content

New Engineless Planes could Fly on Ionic Winds

Electrical power phenomenon with "miraculous potential" could lead to more sustainable forms of flight.

Flight powered by ionic wind: a notion from the wilder shores of UFO spotting? Or an idea whose time has come? If new aviation-related research at MIT really can bring this arcane phenomenon into play, the ultimate prospect could be planes with no fuel on board. Ned Allen, Chief Scientist at Lockheed Martin, speaks of its “nearly miraculous potential”.

We’ve known since the 1950s about ionic wind – more properly known as electro-hydrodynamic thrust. Using highvoltage electricity, air molecules are ionised and repelled from a thin electrode, and simultaneously attracted towards a thicker collector (such as an aluminium tube). They push on the surrounding neutral air molecules, whose displacement generates the thrust. Some Soviet satellites relied on this for propulsion, once in space.

Related article: Tesla: ‘False Profits’ and a Bullish Market

What’s new is the remarkably high efficiency achieved in the MIT experiments. This convinces Steven Barrett, Director of MIT’s Laboratory for Aviation and the Environment, that ionic wind is “definitely worth investigating further”. By increasing the distance between the electrode and the collector, his research team found that total thrust per kilowatt was maximised at low velocity over a large area – and reached 110 newtons, or 50 times more than a modern jet engine.

The energy density of aviation fuel has hitherto put it in a class of its own for propelling planes – but at great environmental cost. So, ionic wind is exciting if sustainable flight is your dream. But don’t hold your breath. The challenges for aircraft design are massive, to say the least. Getting a big enough gap between the electrode and the collector to achieve the high efficiency rates seen in MIT’s lab might mean encompassing the whole plane within the thruster. Moreover, you’d need lightweight portable power, perhaps from solar or fuel cells, to produce enormous voltages to get the whole caboodle off the ground. You might not want to be sitting inside. And, once up, efficiency decreases at speed.

Related article: Can Obama Lame-Duck His Way to a Greener Future?

If this ever does take off, its first application may be in unmanned drones for military surveillance, with the big bonus that their motorless flight would be noiseless and have no infrared-detectable heat signature.

Then again, there could be other uses for ionic wind. An Apple patent application published last year, for instance, would harness it to keep laptops cool – silently. Now that would be nice.

By. Roger East


Download The Free Oilprice App Today

Back to homepage





Leave a comment

Leave a comment




Oilprice - The No. 1 Source for Oil & Energy News