What type of de-icing system is present in the ERJ-145?

The ERJ-145 is equipped with an electrically heated wing leading edge de-ice system, which is designed to prevent ice accumulation on critical surfaces of the aircraft. This system works by using electrical resistance heating elements embedded in the leading edge of the wings. When activated, these elements generate heat that effectively melts any ice that may form during flight.

This type of system is beneficial because it can be activated as needed, ensuring that the leading edges are kept free of ice, which is crucial for maintaining aerodynamic performance and control. The ability to heat the leading edges helps the aircraft maintain its lift and prevents sudden loss of control that can occur with ice buildup.

In contrast, hot air systems rely on engine bleed air to heat the leading edges, while anti-icing fluid application systems utilize special liquids sprayed onto aircraft surfaces to prevent ice formation. Chemical de-icing pads are typically used in ground operations rather than in flight. Thus, the ERJ-145’s design choice for an electrically heated system reflects a balance of efficiency, safety, and performance in preventing ice accumulation.