Uploaded March 2026 | Updated September 2026, 1 week ago
In this video we will take look on The Trimmable Horizontal Stabilizer (THS) actuator. It moves the control surface of the THS. The THS actuator is an electro-hydraulic unit that changes the mechanical or the electrical pitch-trim commands into mechanical movements.
The THS actuator has two hydraulic motors and a pitch-trim actuator. The pitch trim actuator controls the hydraulic actuation. Two hydraulic systems, Yellow and Green which supply power to the hydraulic motors. These systems have their independent fluid supplies.
In this video we will take look on The Trimmable Horizontal Stabilizer (THS) actuator. It moves the control surface of the THS. The THS actuator is an electro-hydraulic unit that changes the mechanical or the electrical pitch-trim commands into mechanical movements.
The THS actuator has two hydraulic motors and a pitch-trim actuator. The pitch trim actuator controls the hydraulic actuation. Two hydraulic systems, Yellow and Green which supply power to the hydraulic motors. These systems have their independent fluid supplies.










