a normal engine use fuel to push the compressor rings around to create a high speed air flow out the back.
If you could create some form of plasma geometry when rotated would compress the air and push it out the back. One of the biggest issues at extreme
altitudes is having enough oxygen to have combustion.
There are some scientific papers out there that go into detail about plasma, and how to use it in an engine, but I can't for the life of me remember
how I found them and what site they where on, other than it was a PDF.
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