[Delmarksman]

Thanks for the pic.
As a former Jet Engine mechanic, this looks to be high maintenance and difficult to repair/maintain in the field.

[pfflier]

First impression: Looks like a Russian design knockoff.

Second impression: Those are some kind of beefy rotor hubs.

[afsnco]

Ding. Ding. Ding. The greater the complexity, the greater the opportunity for catastrophic failure.