US PATENT SUBCLASS 244 / 223
.~.~.~ With feel

Current as of: June, 1999
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244 /   HD   AERONAUTICS

75 R  DF  AIRCRAFT CONTROL {8}
220  DF  .~ Pilot operated {2}
221  DF  .~.~ Control system {11}
223.~.~.~ With feel

DEFINITION

Classification: 244/223

With feel:

(under subclass 221) Apparatus wherein the part engaged by the human operator is provided with means for providing a physical sensation to the operator as it is being moved, the sensation generally being proportional to the force acting on the controlled structure (e.g., flaps, elevators, etc.).