3. Bearingless Main Rotor System
Traditionally needed complex hub assembly for blade articulation, the bearingless primary rotor design removed this need. This technique drastically increases dependability by up to 80% by using flexbeams and torque tubes, therefore lowering the amount of moving components and hence the maintenance expenses. Reduced aerodynamic drag from the simpler design helps to increase fuel economy and maximum speeds by itself. Modern bearingless rotors are becoming more and more popular in both military and civilian uses since they show great stability in hostile settings and offer outstanding control response. Just the cut in maintenance hours has been calculated to save operators millions of dollars every aircraft year.