(under subclass 221) Apparatus wherein the movable part is engaged by an operator's body portion not normally used for controlling an aircraft (i.e., hands or feet).
(1) Note. The movable part may be a seat, a part thereof, or any other appurtenance engageable by the torso or limbs of an operator.
SEE OR SEARCH CLASS
74, Machine Element or Mechanism,
515, for knee and elbow operated control lever and linkage systems respectively.