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581 points zdw | 1 comments | | HN request time: 0s | source
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nickpsecurity ◴[] No.46178218[source]
The threat level for airplanes is set to orange... for anyone dumb enough to fly over an erupting volcano. The orange flying from the ground would be all the motivation I need to stay clear of it.

It was an awesome video, though.

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mschuster91 ◴[] No.46178454[source]
> The threat level for airplanes is set to orange... for anyone dumb enough to fly over an erupting volcano.

Even 180km away from the eruption, airplanes can be seriously damaged [1].

Jet engines really, really do not like to ingest anything else than air and, maybe, a tad bit of water.

https://en.wikipedia.org/wiki/British_Airways_Flight_009

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avalys ◴[] No.46178559[source]
Volcanic ash is particularly bad because it is so abrasive, having been freshly formed without any opportunity for erosion to smooth it down like regular dust.
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1. duskwuff ◴[] No.46179188[source]
That's not the only problem - volcanic ash also has a low enough melting point that it'll melt in the combustion chamber of a jet engine and leave glassy deposits on cooler components.