This is very interesting. It is a Blade CX2 model
helicopter. Took me a while to figure out what
is going on. The control functions of the two rotors
have been separated. The upper rotor is a pitch and roll
stability system or auto pilot only. The bar acts as a large gyro.

The lower rotor is the command roll and pitch control with a totally
ridged rotor. The cyclical pitch is controlled by
a swash plate. There is no over all rotor pitch or angle of attack
change mechanism. Speed up both rotors and the helio goes up. Slow them
down and the helio goes down.

For yaw... speed one rotor up and slow the other down and vice versa.
There is a solid state gyro that controls yaw and can be over ridden.

The mechanism has been vastly simplified compared to a conventional
counter rotating blade helicopter like the Kamov.

Reputedly this is a very stable and easy model helio to fly.
 http://www.youtube.com/watch?v=6W8LocBLAc4

I am interested in this subject due to the reputed difficulty of landing
a VTOL. If you try to translate (at high speed) a VTOL in the vertical
mode, the aero loads on the aero surfaces (wing rudders) tend to force
it to pitch
down regardless of the type of rotor controls or direction. Same thing
happens in
windy conditions. That is not what you want to happen during landing. It is
what you want when taking off.

Therefor a thrust vector system like the
Airscooter would be perfectly adequate for a VTOL. Even this simplified
Blade CX2 system would be over kill.

Paul Lamar ...No rotor no motor.

Paul,

There is one RotaMax powered BD5 ready to fly as well as one in process.

Eric Barger RotaMax


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