Directorly Downwind Faster than the Wind

[Rapadura]

Wait a minute... If this thing can really generate its own thrust WITHOUT natural wind, then they can make a test inside a large covered football stadium (like Veltins-Arena or Amsterdam Arena) where there's no natural wind. And if this thing can run in circles in a closed loop path, then they can put  hundreds of thousands of piezo generators under a track and use this perpetual motion machine as a perpetual electrical generator.

[sparks]

  @Stephan
Can you confirm that this machine runs even without any wind.  The streamers on the vehicle reverse but the bulk air mass he is moving through is still moving relative to the ground.  This allows the propellor to act as both a sail and a propellor.  As a sail it anchors itself in the inertial frame of the air.  As a prop powered by the wheels it moves forward in this bulk.  The result is added to the velocity of the vehicle. 

[Pirate88179]

Hey, think about it.  IF this principle works as we think it might in air, why not use the same idea underwater?  If it does not work in zero wind than one could make the water version to work in slight currents of the ocean.

The water version would/should be more efficient since water does not compress and less loss due to viscosity level of water vs air.

Just a thought.

This is a fascinating device.  Seeing the full scale version is really wild.

Bill

[ramset]

A sail is a propeller.

http://en.wikipedia.org/wiki/Apparent_wind

In sailboat racing, and especially in speed sailing, apparent wind is a vitally important factor, when determining the points of sail a sail-boat can effectively travel in. A vessel travelling at increasing speed relative to the prevailing wind will encounter the wind driving the sail at a decreasing angle and increasing velocity. Eventually, the increased drag and diminished degree of efficiency of a sail at extremely low angles will cause a loss of accelerating force. This constitutes the main limitation to the speed of wind-driven vessels and vehicles.

Windsurfers and certain types of boats are able to sail faster than the true wind. These include fast multihulls and some planing monohulls. Ice-sailors and land-sailors also usually fall into this category, because of their relatively low amount of drag or friction.

These boys are onto somethin

Very hard to get the "brain" around this!
But the proof is in the vids  no BS here.


Chet

[Rapadura]

The most impressive thing about this vehicle is that, if it's really generating its own thrust, then it can move in any direction (north, south, east, west) at any time (unless the natural wind in the contrary direction is at very fast speed).

The definitive test will be the guys who built it showing it moving in a place with almost no natural wind, and moving in any direction, regardless of the direction of the weak natural wind.

Of course it will need a initial artifical acceleration, because, if it works the way we imagine, the wheels must be spinning at a given minimum speed in order to make the helice (propeller) spin at a speed enough to push the mass of the vehicle forward (if the vehicle was lighter, with less mass, this minimum speed would be lower).