Ratier-Figeac is one of the main suppliers of critical parts for helicopters for Airbus Helicopters, supplying the Main Rotor Mast, the Main Gearbox and the Drive Shaft.
Main rotor mast
This lifts, controls and propels the helicopter. It must allow rotation of the blades, flapping joints, drag joints, and feathering joints.
This is a mechanical assembly used to transmit engine power to the main rotor mast, transmit the angle between the engine power take-off and rotor shaft, and supply the accessories (hydraulic pump, alternator, rotor brake, etc.).
This transmits power from the main gearbox (MGB) to the tail rotor mast.