This paper presents a simulation test control system of an airplane engine operating system, which control motor to simulate the force and velocity of throttle lever and the torque on axis.

To ensure the correct torque, torque sensor, torque meter, torque tools must be strict calibration, calibration method of many of the most basic is used weights, standard lever.

Round Safety handle -design prevents accidental operation of low-torque ball valve by snagging the lever handle with personal clothing or equipment.