Cooling system for rotor blade actuators

A rotor system comprising:

• a rotor hub;
• a plurality of rotor blades supported by the rotor hub, each of the plurality of rotor blades including a hub end;
• a plurality of rotor blade actuators, each rotor blade actuator being operatively connected to the hub end of a corresponding one of the plurality of rotor blades such that each rotor blade is individually actuated about an axis;
• a fairing mounted to the rotor hub, the fairing including an external surface exposed to an external airflow and an internal surface defining an interior portion, the hub end and rotor blade actuator of each of the plurality of rotor blades being arranged in the interior portion and the blades extending out through the fairing;
• and
• a cooling system arranged in the interior portion, the cooling system including a first heat exchanger thermally connected to each of the plurality of rotor blade actuators, a second heat exchanger mounted to the fairing, and at least one fluid conduit extending therebetween so as to remove heat generated by each rotor blade actuator to the external airflow at the exterior of the fairing.