Originally Posted by
Wigglyamps
Presumably there are less moving parts and weight saving advantages over conventional tail rotor systems.
Unfortunately, you've got the wrong end of the stick. If anything, there are probably more moving parts and the weight is probably greater than a traditional tail rotor assembly.
A notar still needs a 'fan' to work. It's just that the fan is at the base of the tailboom, rather than at the far end. And the weight of the vertical tailplanes (needed because the fan doesn't provide enough directional control in the cruise) is generally more than a traditional tailplane.
The advantages, however, are quieter operation and better safety on the ground.
HTH