Translatable guide vanes for aircraft propulsion system

An assembly for an aircraft propulsion system, comprising:

• a propulsor rotor configured to rotate about a rotational axis;
• a guide vane structure axially next to the propulsor rotor, the guide vane structure including a plurality of guide vanes arranged circumferentially about the rotational axis, the plurality of guide vanes comprising a first guide vane;
• and
• a vane actuation system configured to pivot the first guide vane about a first vane pivot axis, and the vane actuation system configured to translate the first vane pivot axis axially along the rotational axis.

An assembly for an aircraft propulsion system, comprising:

• an open propulsor rotor configured to rotate about a rotational axis;
• an open guide vane structure axially next to the open propulsor rotor, the open guide vane structure including a plurality of open guide vanes arranged circumferentially about the rotational axis, and the plurality of open guide vanes comprising a first open guide vane;
• and
• a vane actuation system radially inboard of the open guide vane structure, the vane actuation system including a track, a carriage and an actuator, the track extending axially along the rotational axis, the carriage mated with the track with the first open guide vane connected to the carriage, and the actuator configured to move the carriage along the track such that movement of the carriage along the track translates the first open guide vane axially along the rotational axis a travel distance that is between one-quarter and five times an axial distance between the open guide vane structure and the open propulsor rotor.