Located the tip weights a few inches directly above the tip end of the blades. In other words raise the tip weights.

Sketch (A): In a normal situation, if the rotor hub had no pre-coning angle then when the rotor disk was producing lift the blades would have a curved dished shape cone. The coning angle would be greatest at the tip and least at the root.

Sketch (B): Of all the forces working on the blades, centrifugal force is the greatest. If the tip weights were elevated then these elevated weights would attempt, by centrifugal force, to lower the blades. Most of this lowering effect will be at the tips where the coning angle is the greatest.

Theoretically the correct amount of weight at the correct elevation above each blade could remove the entire coning angle. The center of gravity, the center of gyration and the center of percussion will then all be at the same point and this point will be in the same plane as the rotor disk. This being the case, there should be less vibration. During flight there will be changes in disk loading and flapping angle but this 'splitting of the centers' should be less than that of a current conventional rotor blade.

Any lead lag action combined with the weight being above the spanwise centerline of the blade may cause torque about this centerline and thereby change the pitch angle. This may be for good or for bad. A stiff blade would reduce this pitching.