Duct vane rotation system

An aircraft comprising:

• a fuselage;
• and
• a rotor system comprising:
• a duct ring;
• a hub disposed centrally to the duct ring;
• first and second stators each connected between the duct ring and the hub;
• first and second control vanes rotatably connected to the first and second stators, respectively;
• a structural hoop having a first end connected to the first control vane and a second end connected to the second control vane, the structural hoop for translating rotation of the first control vane about a vane axis to the second control vane;
• and
• a mechanism for restricting at least one of forward-aft movement and side-to-side movement of the structural hoop relative to the duct ring.

A ducted rotor comprising:

• first and second control vanes rotatable about a hinge line axis;
• a structural hoop having a first end connected to the first control vane and a second end connected to the second control vane, the structural hoop for translating rotation of the first control vane about a vane axis to the second control vane;
• and
• a mechanism for restricting rotation of the structural hoop about the hinge line axis.