After watching Alexander Korda's 1936 big screen interpretation of H.G. Wells'
"Things to Come" on TCM last night, I discover that Sikorsky has been working on the X2 concept for over 70 years now...
Wells/Korda apparently had little faith in the coaxial rotor, preferring a more conventional layout instead. Still, the good news is that the program seems to be ahead of schedule - Wells predicted that the concept wouldn't appear until 2036...
I/C