The A160 has thick tapered carbon fiber blades to operate at 140rpm. Are the blades designed to be very stiff to avoid coning at 140rpm?
In other words, do the blades flap on the A160 the same as any other rigid or hingeless rotor?
Or in other, other words, is this a new type of rigid rotor that really is rigid?
thanks
slowrotor
Rotor head photo at this site:
http://www.boeing.com/news/frontiers...r/ts_sf04.html