What is the function of the pitch trim system in the ERJ?

The pitch trim system in the ERJ is designed to assist in stabilizing the aircraft's pitch attitude. This system allows the pilot to adjust the tailplane's aerodynamic forces without having to maintain constant control wheel pressure. By trimming the pitch, the aircraft can maintain a desired attitude and altitude more easily, reducing pilot workload during flight, particularly during prolonged periods of cruise or when the aircraft is actively maneuvering.

It works by adjusting the elevator's position, which directly affects the aircraft's nose-up or nose-down orientation. With the trim set appropriately, the aircraft can fly hands-off at a stable pitch setting, enhancing overall control and comfort for both pilots and passengers. This is particularly important during various phases of flight, such as cruising, where steady flight conditions are crucial for efficiency and safety.