Wittenstein Aerospace and Simulation Ltd.

Honeywell International Inc.

David A Cowling

Casey Hanlon

James I Kern

Douglas C Smith

A control device comprising: a reference frame; a stick; a pivot mounting the stick to the reference frame and defining a pivot axis; and an actuator for rotating the stick about the pivot axis. Mass balance is achieved by offsetting the centers of mass of the actuator and the stick from the pivot axis. Typically a line joining the centers of mass of the actuator and the stick substantially passes through the pivot axis. The actuator is a rotary actuator having a stator coupled to the stick and a rotor coupled to the reference frame.

Control device

An active user interface assembly includes a user interface, and one or more feedback motors coupled to the user interface. The one or more feedback motors, when energized, supply a feedback force to the user interface that opposes user interface movement. One of the feedback motors is disposed such that its center of gravity is located at a position relative to the user interface to mass balance the user interface when it is in the null position. The configurations allow for the center of gravity of a feedback motor to be positioned in a manner that alleviates the need for counterbalance weights.

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Bristol, United Kingdom

David A Cowling