Simplist Overunity Device on the Planet

[Yucca]

Hi All,

Cox freeflight helicopters are built similar to this, the small gas engine is allowed to rotate and it drives large blades whilst the engine shaft drives a small prop, thus counter-rotation is achieved eliminating torque to the body hanging below and so no tail rotor is needed.

Yucca.

[Pirate88179]

Here is a link to a video on one flying.  I thought if one blade is fighting the other, neither would win.  Unreal.

Bill


http://www.youtube.com/watch?v=dyGJVfD6nxc

[Creativity]

well.. if u let the stator to rotate free ,its speed will be a portion of total speed of this motor with mounted stator.See,1000rpm at the shaft with non revolving stator(bound to the table) will become 800rpm on the rotor and 200 on the stator (once stator let to spinn free,its mass is bigger than of the shaft so it will spinn slower).Relative speed shaft-stator will stay the same.Speed of shaft will reduce and of stator will increase relatively to the stationary table.If u see this then u will see that blade 1 will not output it's full rated power,Blade 1 will have 90% conversion but from 800rpm,blade 2 will have also 90% conversion from 200rpm and not both 90% from 1000rpm.

[SkyWatcher123]

Hi folks, hi sparks. Very interesting, are both fan blades on same powered motor shaft. If they are I dont see the issue of the 2nd blade rotating at 200 rpm, the blades would be in parallel so if we input 100 watts each blade would get 50 watts forgetting conversion eff. for now. so in theory we should get 150% eff. of wind generation or greater because now since the 2nd blade now increased its speed due to 1st blades air blowing at it. This may work any one going to test or has any one yet. I think generators with props at periphery of a rotor with a motor driving might work as well so as not to reflect generator load to motor.

peace, love, light

[AbbaRue]

Isn't this how turbine pumps work?
Multiple blades mounted on one shaft? 
Or am I missing a point here?