Gidday, I'd imagine the yaw would be controlled by rotor torque
differentiation
or simple adjustable rudder type wings in the outer rotor disc wash.
Move to the country and relax.
I can't see car sized mosquitos buzzing around for a long long time .
especially
with modern attitudes like yours.
Try alt.scooters.geriactric (just kidding)

Cheers Trentus
Cam.....


Pardon me while I drop my guard and flash my
No tail rotor?
I assume the twin sets of rotors turned in opposite directions to counter
the resultant forces that would cause it to spin otherwise.
How would you then turn one? I believe you turn a helicopter by altering
the
amount the tail rotor counters the tendency of the craft to spin? How
would
you turn a helicopter that has no tail rotor.

Wouldn't it make a fantastic little commuter vehicle! Straight out of your
backyard, to the nearest park to your work, pack it all up, and walk
inside.
Just image the resultant mess that could be created as every Tom Dick and
Harry started going to and from work on one.
Could make a day in the park with your kids pretty messy as the morons we
get on our roads everyday, decide to start landing these things there
instead of creating their usual brand of havoc on the freeways.
Would we end up with Riceboy versions? with huge sound systems, and
colourchange paint jobs?

Aaargh, I think I need to go lie down, the visions of such a world have
left
me shaken to the core.

Trentus