An additional benefit will be to the other aircraft who may wander into their wing vertex. That is a real concern when landing behind a heavy aircraft, causing a longer spacing between landing aircraft.

The developer claims 6% improvement during \'testing\', but where are the pictures? Is this is to be taken beyond a theory then real-world wind tunnel testing and flight testing needs to be carried out.

Yes but... many MANY of the flights of 500 km that people take are unnecessary. That\'s the whole point! You fly on holiday to Europe 2-3 times a year, when you could just stay in the UK and have just as much a wonderful time. You would not choose to drive to Greece - you fly - so comparing flying to driving a car is daft. You cannot drive a car to LA from London. Not going is the best solution.
Still - if these wing tips work, we\'ll see them on all planes by the end of the year. If they don\'t, we won\'t.

He can claim all he wants but that an a dollar will only get him a cup of coffee.
I do a lot of aero/hydrodynamics including wing/rotor, keel tips and his device won\'t do what he claims and might even add more drag than it cuts. Present advanced wingtips, especially down curved with some aft guide fences would be far better.
He should look up something called intersection drag which ruins his ideas eff.

Important point: wingtip vortices are a significant source of drag only at LOW speeds, where induced drag predominates. At cruise, it is skin-friction drag and wave drag that matter, and this device cannot possibly do anything about those. I therefore doubt the claim of 6% saving in cruise, and await proof. I am not even sure about the claim of safety improvement in landing approach and takeoff. If this thing works at all, it increases the aerodynamic loading on the wingtips, which increases the danger of a wingtip stall - the most dangerous kind.

As a point of nit-pickyness, I thought the mean rate of fuel consumption per passenger was around 1 liter of fuel for 100Km travelled.
That is why it especially grated when the average ????? car got say 12 or 15 - 25Kml.
Mr TIGHT ass, here reckons all cars should be made to get 50K a litre.

artist rendition looks incorrect to me, seems like you would want to spin the air in the opposite direction of spillover/vortex to slow it down not in the same direction to speed it up?

The A380 consumes 3.4l per 100km and Passenger IIRC

Even if the gripes about airplanes are valid, it looks like this could improve wind turbines. I\'ll celebrate that little advance.

I´m sure this photos have human induced errors on the design due to comercial reasons.