A hand controller system which provides the proper feel of the hand controller during aircraft operation. In both non-redundant and redundant embodiments, torque, and position measurements are made from the hand controller movements and processed to provide a feedback to a control motor in...http://www.google.es/patents/US5694014?utm_source=gb-gplus-sharePatente US5694014 - Active hand controller redundancy and architecture
Active hand controller redundancy and architecture
