Can a contra-rotating helicopter simply tilt its entire rotor set instead of using a cyclic? I was reading this interesting question and, per answer #1, a normal helicopter cannot do it because gyro effects would probably mean the body of the heli would tilt more than the rotor.

So now I think about contra-rotating helicopters, like the Ka-50. They don't need tail rotors, because the contra-spin cancels out reaction torque (except when they want to yaw, for which they extend little things at the blade tips of one rotor, producing more torque there and therefore opposite yaw).

Anyway, can't a contra-rotator just tilt its whole hub instead of using traditional cyclic (swash plate, scissors link, which in fact are a lot more complex for a contra-rotating helicopter).
Juan de la Cierva, inventor of the autogyro, on the C.30 went to a tilting rotor. Most autogyros tilt the entire rotor for cyclic control. Some autogyros apply engine torque to the main rotor to assist in achieving short takeoffs. Now for this brief time, the autogyro is functioning like a helicopter, and the main rotor is driven by the engine prior to takeoff. There is now a torque from the engine acting on the airframe, that requires more pilot hand force to control the rotor while the engine is driving the rotor. Counter-rotating rotors on a helicopter would neutralize the reaction torque into the airframe. So yes for a very small helicopter, it should be possible to tilt the main rotor for cyclic control, without hydraulic power assist. If one is going to use a swashplate for collective control, it is easier to just control cyclic conventionally.
Here is one example of a helicopter that tilted the rotor for the cyclic:
http://www.aviastar.org/helicopters_eng/bensen_zipster.php