If we are addressing the Robinson line I would advise that they design a three-blade rotor system similar to the Schweizer 300. This particular rotorhead was not designed by Hughes but was adapted from an autogyro. From what I understand Frank Robinson worked for Hughes around the time of the design of the Hughes 269 and most likely designed his own rotor system for the R-22 to prove that he could. If a 3-blade system with full articulation were installed on the R-22 and R-44 they would be screamers and most of the limitations placed on them relative to mast bumping and extreme flapping would go away. If the 3-blade system were adapted at the onset there would be no FAA AD 95-26-04 and there would be many people still living and flying.
