Can you build a synchropter?

[Galane]

Invented by Anton Flettner and commercialized by Kaman, a synchropter hast two, two bladed rotors side by side with their hubs close together. The shafts are angled outward and geared together so the blades cannot hit each other.

Pretty much exactly like an upside down, flying eggbeater, but with the beater blades bent out straight.

Kaman has built various helicopters with this design since 1947.

[Azimech]

With stock parts or modded as well? First I'll have to invent a reliable gears system. The rest is easy.

[Jon144]

Agreed. I have little idea how I would ever go about making a thesible interrupter gear. Using the turboprop concept however both rotors would have a very similar rpm to the point a collision would be rare.

[Galane]

Doesn't matter how it's made, I'd just like to see one fly in KSP.