

In larger and faster aircraft, the aerodynamic forces become too great for the pilot to overcome without assistance so hydraulic systems are often incorporated to move the flight control surface. The actuators are powered by the hydraulic pressure generated by the pumps in the hydraulic circuit. The hydraulic circuit, which has hydraulic pumps, reservoirs, filters, pipes, valves and actuators. Like the mechanical flight control system, it consists of rods, cables, pulleys, and sometimes chains.

In this design, a collection of mechanical components such as cables, pulleys, rods and chains transmit the movement of the flight deck controls to the appropriate control surface(s). A hydro-mechanical flight control system has two parts: The mechanical circuit, which links the cockpit controls with the hydraulic circuits. The most basic flight control systems are mechanical and, although they date back to the earliest aircraft types, are in use in the majority of light, general aviation aircraft. The ailerons control motion around the longitudinal axis (roll), the elevator controls rotation around the lateral axis (pitch) and the rudder controls movement around the vertical axis (yaw). Movement of any of the primary flight controls causes the aircraft to rotate around the axis of rotation associated with the control surface. Secondary flight controls are intended to improve the aircraft performance characteristics or to relieve excessive control loading, and consist of high lift devices such as slats and flaps as well as flight spoilers and trim systems.ī727 Flight Control Surfaces. Primary flight controls are required to safely control an aircraft during flight and consist of ailerons, elevators (or, in some installations, stabilator) and rudder. It is only with a holistic approach to design that Domin has. Altitude control Dual hydraulic surface actuators Before Yesterday B-49. Metal AM has allowed Domin to rethink the design of a Primary Flight Control from first principles. For the Wrights the flight control system sensors, equalizers, and actuators were human and the surface. students of all aspects of the flight system. Aircraft flight controls are the means by which a pilot controls the direction and attitude of an aircraft in flight.įlight control systems are subdivided into what are referred to as primary and secondary flight controls. before the first flight to the present day, and even extended in imagination to the future.
