What is the windshield heat usage when below 30?

The use of high windshield heat for deicing when temperatures fall below 30 degrees Fahrenheit is crucial for maintaining visibility and safety during flight. In colder conditions, there is an increased likelihood of ice forming on the windshield, which can obstruct the pilot's view and impact overall situational awareness. Utilizing high heat for deicing effectively melts any ice that may have formed, ensuring that the windshield remains clear.

Additionally, operational protocols often dictate the use of maximum heat settings in these conditions to rapidly address any ice issues and prevent them from hindering the aircraft's operations. This proactive approach is pivotal in ensuring both pilot safety and flight performance. By keeping this in mind, it becomes clear why the use of high windshield heat for deicing is the correct choice when temperatures drop below 30 degrees.