Patent ID: 11926416
Assignee: THE BOEING COMPANY
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 19:
20. The flight control system (300) of claim 17, wherein the rotary hydraulic actuator (90) comprises an extend chamber (96) and a retract chamber (98), both of which are filled with hydraulic fluid (54), wherein the rotary hydraulic actuator (90) further comprises a rotary vane (97) that separates the retract chamber (98) from the extend chamber (96), wherein the rotary vane (97) is configured to rotate jointly with the flight control surface (20), and wherein the magnetic force (44) is operable to restrict movement of the rotary vane (97) within the rotary hydraulic actuator (90) as a result of the aerodynamic lift force (42) on the flight control surface (20).