What is the key benefit of using electric heating elements for anti-ice?

The key benefit of using electric heating elements for anti-ice is that they provide immediate heat without delay. This characteristic is essential in aircraft operations, especially when dealing with ice accumulation on critical surfaces such as wings and tail sections. The ability to generate heat right away allows for prompt removal or prevention of ice, which is crucial for maintaining aerodynamic performance and safety during flight.

Immediate heat is vital because any delay in de-icing can lead to increased ice formation, which can affect the aircraft's lift and control. In contrast, other systems, such as those that rely on bleed air, may exhibit a lag in heating response as they need to build up pressure and temperature before being effective. This aspect of electric heating elements makes them particularly advantageous in conditions where quick action is necessary to ensure safe flight operations.