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by atonse 763 days ago
I came here to say the same. I will also be on a transatlantic flight on the 12th. Is there anything to be worried about with airplane electronics systems in flight, or is it more potentially on the side of "there might be flight delays"?
2 comments

>Is there anything to be worried about with airplane electronics systems in flight, or is it more potentially on the side of "there might be flight delays"?

An airplane is a big closed conductive tube, not connected to the ground. There's nothing to worry about. I'd happily fly on those days.

As for why we worry about the storms on the ground - the main effects of Geomagnetic storms on the ground involve DC currents generated in power grids that span hundreds of miles, at the ends of those transmission lines, are transformers engineered to most efficiently use the transformer steel by almost pushing it to saturation, at which it rapidly loses the ability to contain more lines of flux. This saturation can then allow almost unlimited amounts of current to flow, turning the transformer into a space heater, connected to gigawatts of power. Things can then very rapidly get out of hand, circuits fault, opening lines, causing power to be diverted elsewhere, until the entire grid goes down.

No such issues can happen in an airframe.

Thanks for this explanation, this is exactly why I love Hacker News :D
I was trying to find stuff around Oct 2003 when the last event of this magnitude took place, but I wasn't able to find anything comparable. From what I can tell the forecast is more mild on the 12th UTC, so I wouldn't worry that much about that. I was worried in my case because my flight leaves pretty much at the apex of the geomagnetic storm.

I think we can expect delays, GPS being unresponsive, radio issues, and some control tower congestion & issues. Can't really comment with any more detail.

Looking at https://en.wikipedia.org/wiki/Solar_cycle_25 there's already been a G4 in march and it didn't seem to have caused any issues (AFAIK).
The March G4 was unexpected. I wouldn't be surprised if this one turns out to be much stronger than is modeled today as well.