ROTATING CONTROLS
The rotating controls receive inputs from the TR actuator and transform give
the required blade pitch-angle changes. The TR controls include:
• the spider mounted over a sliding tube. The sliding tube is installed on
the TGB mast and supplies the attachments for one end of the rotating
scissors;
• the rotating scissors that supply a rotary drive force from the hub to the
spider. At the same time the rotating scissors turn to allow lateral pitchchange
movement;
• four pitch links, one for each blade, that connect the TR blades to the
spider.