Quotes from the news wire:
The fans in front help to produce an air cushion, because the wing is tilted like a wedge and so the air is trapped below the wing surface and like a hovercraft it can elevate up at the beginning, so it can really lift off at nearly zero speed. And later you can tilt these thrusters in the front to get into a more streamlined, so which is then in the performance, better. So you use tillable rotors in the front to lift off at lower speed and fly at higher speed.
Found on Reuters 8 years ago
In cases where the flow is at higher risk of detaching from the surface; so your vehicle has a risk to sag down, to fall down. In that period a membrane wing can keep it afloat because the dynamics in the surface trigger vortices which roll down the wing, and these vortices produce lift. So you can use this vortex generation to produce lift. And you need the membrane to excite, generate these vortices.
Found on Reuters 8 years ago
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