CEFOSKEY,
Me thinks heli training just got a whole lot less expensive!
It does look like a seriously capable system though.
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Dave,
X2 papers are much appreciated!
I've been doing a lot of hours recently so didn't check my email computer - apologies...
If your intermesher can fly above 200kts then it must unload the retreating blade, unless you have some super new way of pushing up stall rel-AOA. But let me back peddle a little: a low hinge offset rotor could rely on rotor coning to generate the advancing side lift. As long as rotorheads are not teetering advancing side does not need to balance out lift with retreating side. So with lateral symmetry there will be no net rolling moment in flight.
OK, i agree with you: You can use laterally seperated low hinge offset rotors with retreating side unloaded. The lateral seperation then allows a fast roll response time.
For you question about prop position, what i mean is that for any streamline:
thrust = (mass_per_sec x velocity_induced) + (press_local - press_farfield)
At cruise mass_per_sec is higher so you need less induced velocity.
Also pusher prop is effectively just revectoring streamtubes, but main rotor is generating most of the total pressure increase required for lift and thrust. Pusher prop effectively has it's power reduced since it is drawing air from a region of higher total pressure under the main rotor system.