Advanced control system for a rotor and/or a compound or rotary wing vehicle

A vehicle having a mechanism for controlling and stabilizing said vehicle and a rotor system therein, said rotor system having fixed hub arms and a rotor blade featherably mounted to each of said hub arms, and comprising in combination,

• swashplate means operatively connected to said rotor blade,
• gyroscopic means operatively connected to said swashplate means, and
• a sensing means operatively connected to said gyroscopic means and including an end element for measurement of pure flapping motion of said hub arms, said sensing means feeding back a signal proportional to the flapping bending activity undergone by said rotor blade as a result of an external load force on said rotor blade, said gyroscopic means then precessing to return a correcting feathering motion to said rotor blade through said swashplate means.

In an apparatus for controlling and stabilizing a rotor system having a rotor comprising fixed hub arms and a rotor blade featherably mounted to each of said fixed hub arms, swashplate means operatively connected to said rotor blade, cyclic actuator means operatively connected to said swashplate means, and gyroscopic means operatively connected to said swashplate means,

• the improvement comprising
• a sensing means for feeding back a signal proportional to the flapping bending activity undergone by said rotor blade as a result of an external load force on said rotor blade operatively connecting each of said fixed hub arms to said gyroscopic means which then precesses to return a correcting feathering motion to said rotor blade through said swashplate means.