ELi5 Why are planes grounded when there is fog but they can fly through fog and clouds.

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I dont understand when they have control towers and such advanced technology why fog can ground planes. Not much is done by eyesight now surely?

In: Technology

8 Answers

Anonymous 0 Comments

Pilots need visibility to maneuver the airport. They need to be able to see beacons, runway marking, airport support vehicles etc.

The tower needs to be able to see plane activity on the runways.

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