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2026. 6. 30. 작업

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How do race drivers clear foggy windscreens?

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Fogging happens when there's a temperature differential between one side of the glass and the other. Most racecars are open - they remove the windows to save weight too, so the temperature inside the car is the same as the outside. As there's no difference in temperature there's usually no mechanism for fog to form in the first place. Still, the conditions can sometimes still happen with rain or very high humidity. In those cases a simple blower system will work okay, there are also spray or wipe on chemical coatings you can put on to prevent fogging. In the X-1 program that broke the aviation sound barrier in a rocket airplane they wiped on Preen shampoo believe it or not! An AC compressor certainly helps defogging but it's not essential.