Dave,
Does the circle density in your plots relate to induced velocity? I'm a bit bothered that your calc does not account for interaction between one rotor and another. There should be some azimuthal variation with each rotor.
Interesting point about interleaving reducing the blade loads for a given rolling moment (ie snapiness). The problem is this does not help you in level flight. The retreating side needs to be off loaded regardless of config.
CEFOSKEY, riff_raff don't like your fairings. Is you jus' gonna take that?
Riff_raff, agreed hub is a nice piece of design. Not sure about loads going up exponentially with radius, though. All components are scaled up equally, and stress reduces with depth^2. Since a machine twice the mass would require twice the rotor diam then hub bending moment also goes up 2x2=4, which keeps stresses in a hub twice the size in trim. Problem is generally MGB which now handles twice the power at half the output speed...
Commercial sector wouldn't mind a fast helicopter.
