John, I do recognize the obvious similarity between the Model 360 and RAH-66, but in particular I was referring to an aerodynamically significant wing on both the M360 and S-67. The S-67 wing was quite large and I assume could offload the main rotor in high speed flight so that the rotor could still be effective at producing horizontal force at a lower thrust level at high Mu. The M360 doesn’t look quite as significant but the renderings make it look more purposeful than simply as weapon storage and I assume rotor offload is part of how it will cruise at the claimed 185 knots. RAH-66 obviously looks similar but that’s a distinct difference.
Thanks for the info on the S-67 rotor rpm, I suspected that might be the case.