[lobocinza]

> In July 1962, the US carried out the Starfish Prime test, exploding a 1.44 Mt (6.0 PJ) bomb 400 kilometres (250 mi; 1,300,000 ft) above the mid-Pacific Ocean. This demonstrated that the effects of a high-altitude nuclear explosion were much larger than had been previously calculated. Starfish Prime made those effects known to the public by causing electrical damage in Hawaii, about 1,445 kilometres (898 mi) away from the detonation point, knocking out about 300 streetlights, setting off numerous burglar alarms and damaging a microwave link.

I guess that's the smallest of your worries if you are hit by a nuke.

[bostonsre]

> I guess that's the smallest of your worries if you are hit by a nuke.

Well.. from what you posted I guess it depends on if you are in the plane or not. It sounds like you could be at a distance where you survive the blast but are impacted by the EMP and it would probably suck to be at 30k feet in a plane that is hit by an EMP.

[lobocinza]

I don't think an EMP from a ground explosion would be significant. At least for a something 30k feet above it as I believe the pulse to be shaped horizontally and weak. To generate a significant EMP you have to detonate a nuke at high altitude as to cause a secondary EMP due to Earth magnetic field.

Even if a plane is hit by an EMP I believe the engines will keep working and the plane will have backup controls. Unless it's a Boeing of the newer generation where everything is electrical/digital. And even if everything stops working it will keep gliding unless at an odd angle/speed at the moment of the hit. That said loss of instruments and radio would be painful. Components getting damaged depends on the magnitude of the EMP and a weak pulse might cause only transitory malfunctions.

Note: my knowledge on this subject is superficial and I'm probably wrong.

[lobocinza]

If you are Vesna Vulović you can survive anything.