The Clever Meaning of Red Balls On Power Line: How They’ve Saved Numerous Lives

Published on 03/15/2021
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Useful Indicators

When you look out the window of your plane, you’ll notice that the spheres are getting closer together as you approach the end of the runway. The distance between those markers is usually only 30 to 50 feet. As a result, they serve as useful indicators that the craft is approaching the tarmac’s edge.

Useful Indicators

Useful Indicators

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Fire-Colored Spheres

Nevertheless, why are the visibility markers red? They’re well-placed because they can be seen against the sky! However, according to a later FAA study, orange is a more visible color for pilots. So, even if there are still exceptions, you’re more likely to see fire-colored spheres hanging from power lines these days.

Fire Colored Spheres

Fire Colored Spheres

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