Dual Controls Kit
Last updated
Last updated
The dual controls kit provides the controls for the copilot. It consists of the components that follow:
, Includes the copilot throttle switch
, Includes the copilot ICS trigger switch
The collective jackshaft assembly consists of an aluminum tube and a collective stick support made of machined aluminum billet. They are assembled together with two bolts perpendicular to each other. The tube is also mounted on the pilot collective jackshaft with two bolts perpendicular to each other. It transmits the force from the copilot collective stick to the pilot collective jackshaft. The bolts are attached with washers and castellated nuts safetied with split pins. The surfaces of the tube mating with the collective stick support and the pilot collective jackshaft are machined to close tolerances to keep its deflection to a minimum when force is applied to the copilot collective stick and grip assembly.
The collective stick and grip assembly lets the operator control the collective pitch of the main rotor blades. The collective stick is made of aluminum tubing with a riveted aluminum collar. Two slots are cut in the bottom of the stick to engage a bolt in the collective stick support. A quick release pin is inserted in matching holes in the collar and the collective stick support to lock the collective stick in position. The grip assembly is made of plastic and has the copilot throttle switch. A harness for connecting the copilot throttle switch to the helicopter exits near the base of the stick. A plastic support is also installed near the base for the connector.
The cyclic stick and grip assembly lets the operator control the cyclic pitch of the main rotor blades. The cyclic stick is made of aluminum with a riveted stick end made from a machined aluminum billet. The stick end is inserted into the copilot cyclic base fitting assembly and is locked in place with a hand tightening screw. The grip assembly is made of plastic and has the copilot Intercomm System (ICS) trigger switch. A harness for connecting the ICS trigger switch to the helicopter exits the cyclic stick above the stick end. A doubler riveted above the stick end reinforces the cyclic stick at the harness exit hole.
The left pedal assembly lets the operator control the pitch of the tail rotor blades, and the thrust the tail rotor produces. It consists of an upright tube with the adjustable pedal support, and of the left pedal with its quick release pin. It is made from aluminum with the quick release pin made from corrosion resisting steel. Two slots are cut in the bottom to engage a bolt in the directional pedal jackshaft assembly, and a riveted collar near to the bottom end of the upright tube lets lock the assembly in place.
The right pedal assembly lets the operator control the pitch of the tail rotor blades, and the thrust the tail rotor produces. It consists of an upright tube with the adjustable pedal support, and of the right pedal with its quick release pin. It is made from aluminum with the quick release pin made from corrosion resisting steel. Two slots are cut in the bottom to engage a bolt in the directional pedal jackshaft assembly, and a riveted collar near to the bottom end of the upright tube lets lock the assembly in place.