Originally Posted by
IFMU
So, the X2 was a flexbeam rotor?
As if you didn't know...not exactly "A" (singular) flexbeam, more akin to a beefy composite TT strap or loop.
It really depends on what one considers a "flexbeam" semantically. In the traditional sense like an S-92 tail rotor, Comanche, or Bell 680/H1 style chicken foot yoke/flexbeam? No.
But if you pay close attention, you'll notice even Sikorsky refers to these types of multi-node structures as "flexbeams"
https://www.google.com/patents/US7695249
https://www.google.com/patents/US20150014476