Directorly Downwind Faster than the Wind

[gmeast]

This one will blow you away.

Is it possible to build a device in which the forward motion turns a wheel that turns a propeller which provides enough wind propulsion to accelerate the device forward faster than the air around it? You would think not, but some investigators appear to have accomplished just that.

http://peswiki.com/index.php/Directory:Directly_Downwind_Faster_than_the_Wind

Plans included.

http://peswiki.com/index.php/Directory:Directly_Downwind_Faster_than_the_Wind#Parts_List

Anyone game to build one quickly and validate?

Sterling

I'm replying to the 'opening' post because that's a good place to start.

It does what it does for the same reason a sail boat can sail cross-wind faster than the wind.  The wind reacts to the sail creating an acceleration and thrust normal to the wind and parallel the keel (determining the direction of travel).  The prop blades are the sails (angled to the wind).  The prop shaft bearing is the keel (determining the direction of travel).  The force (in this case - torque) is simply translated into power at the vehicle's drive wheels thereby providing vehicle motion.  The track of the vehicle's wheels determines the vehicle direction (a second keel ? ?)  The track of the vehicle is of no consequence as long as the plane of the rotor/propeller disc is mostly normal to the wind (OK then, for this, a pivoting rotor mast).  When the plane of the rotor/propeller disc AND the track of the vehicle are normal and parallel the wind, respectively, the effects are additive and accentuates the marvel.

[TechStuf]

It does what it does for the same reason a sail boat can sail cross-wind faster than the wind.

If so, then how can it sustain a velocity of over 2 times it's own tailwind, effectively far outpacing the force, which you believe, sustains it?  Also, if you study the device, you will note that the tailwind does not deflect the blades as in the sail boat scenario, since they turn against the wind.

the effects are additive and accentuates the marvel.

Yes, it is quite a marvel.  One that has snapped more than a few arrogant scientist's mouths shut like bear traps.

http://www.youtube.com/watch?v=SqXbV0gsjfM

If such a simple device can do that, then what may further be said about the seedy & greedy ivory tower that is modern science?


TS

[sparks]

   The most important aspect of this device is it feeds the prop with the wheel resistance.  Consider this.  A dynamometer test on an electric motor.  We bolt down the motor to a stationary object.  We then energise the motor and measure the torque and rpm.  We do not consider the work done by the stationary object which has to resist the counter torque produced by the motor.  Instead of bolting down the motor let us add a load to the stator.  A prop.  As the prop loads up the primary load goes faster.  As the primary load goes faster it produces more countertorque which drives the secondary load.  The more we load down the stator the more power delivered to the rotor.  The faster the craft goes the faster the prop is driven.  If we bolt the craft down we have a windmill and waste 1/2 the energy in counterproductive work like slowing the Earth down.  The wind is always moving at 14mph or whatever relative to a fixed position on the Earth.  The craft draws from this power no matter what position on the Earth it is.

[magnetmotorman]

They have got it now.
Selfacceleration and driving faster than the wind.

This proves that that system is overunity I would say:

See their 3 new videos:

http://www.youtube.com/user/TraderTurok

Well done !

Regards, Stefan.

The energy of the wind is accumulated by the mass of the vehicle, that is all, no overunity. It's obvious that it will accelerate faster than wind, because its accumulated energy. Just like a pendulum goes further away than the hand that has elevated it.
Accumulated energy.

[ramset]

SSOOOoooo........

At what point does this "accumulation " fall off??
1/2 hour ?    one hour?
Seeing as How they could probably do this
                 FOREVER!!

HHMMmmm.............

NAH............... Whether or not its OU

"Accumulation" is the Wrong answer!!

Chet