Final answer:
Windshield heat prevents fogging up or freezing of the windshield, improving visibility in cold weather conditions.
Step-by-step explanation:
The major function of windshield heat is to prevent the windshield from fogging up or freezing in cold weather conditions. It works by using a heating element embedded in the glass to raise the temperature of the windshield surface, which helps to evaporate any moisture on the glass and keep it clear.
The major function of windshield heat in aircraft is to prevent the formation of ice on the windshield, which can severely reduce visibility and impact the pilot's ability to safely fly the aircraft. It is also used to remove any ice or frost that may have already formed.
By heating the windshield, the heat system ensures clear visibility for the pilots during various weather conditions, especially in colder climates or at high altitudes where the temperature is low and the likelihood of icing is higher.
This is particularly important during winter months when the temperature drops below freezing. The windshield heat also helps to improve visibility by melting ice and snow that may have accumulated on the windshield.
Overall, windshield heat is an essential feature in automobiles that ensures clear visibility and safe driving in varying weather conditions.