Who has seen the wind?
Neither I nor you.
But when the leaves hang trembling,
The wind is passing through.
Who has seen the wind?
Neither you nor I.
But when the trees bow down their heads,
The wind is passing by.
BY: CHRISTINA ROSSETTI
Videos of the Worlds Largest Flap Turbine
Two Sails
Here we were preparing the sails for a four sail configuration and I wanted to know if the turbine would work with two sails or not so we tried it.
I thought it would not work but I was wrong. The rotation was not smooth but it was rotating. The wavy motion of the flaps will be eliminated
once they are manufactured with plastics. For more information on the check-valve turbine please visit: http://www.flapturbine.com
Three Sails
This is the worlds largest check-valve turbine (AKA the flap turbine) that has ever been built. The height of each sail is 5 feet.
The flaps of this turbine are constructed from tent fabrics for prototyping purposes during actual construction they will be
manufactured from plastics. The applications of this turbine is limited only by our imaginations. For more information on the check-valve
turbine please visit http://www.flapturbine.com.
Four Sails
Ideally each level of the check-valve turbine should have at least three sails to efficiently generate electricity.
However, two sails in each level, as seen in this video, can be used to reduce the cost.
For more information on the check-valve turbine please visit: http://www.flapturbine.com
Six Sails
This configuration of the check-valve turbine will be used for land based applications, such as on rooftops of urban areas.
Each level will have at least three sails and the sails will be offset by 60 degrees from the layer above allowing the
turbine to rotate smoothly. For more information on the check-valve turbine please visit: http://www.flapturbine.com