Aerodynamics ~ Yaw and Twin Rotors

[Dave_Jackson]

Hi Shawn;

Thanks for the critique.

Yes, the tandem helicopters are able to use opposed lateral cyclic for yaw. This is functionally identical to the earlier side-by-side configured helicopters, which used opposed longitudinal cyclic.
Unfortunately, on configurations with closely spaced rotors, such as the intermeshing and the coaxial, this opposed cyclic is of little to no use.