Dave Stern cooked it up for his ENT novels Daedalus and Daedalus' Children. I don't know how much he thought about integrating it into the Trek continuity, but it fits in many ways:
Stern says an ion cascade mechanism is a promising power generation tech that fails spectacularly in a human test in the 2140s - but the Suliban managed to get it working, and their ships are propelled by it. Stern's inventor calls the system "cascade ion drive", or CID for short (and seems to have a thing for the heroic character El Cid, too). Henry Archer's antimatter system wins out when CID flops.
VOY tells us that polaric ions are a promising energy source that fails spectacularly on an alien planet in "Time and Again". There's also a polaric ion test ban in the Alpha Quadrant.
Scotty in "Spock's Brain" says that a well-working ion drive in a starship is something the Feds could learn a thing or two from. Said drive seems to move the starship at warp speeds.
And the Class F shuttle in "The Menagerie" features ion engine power...
So, perhaps CID is part and parcel of Star Trek, but the Feds only know how to use it in small scale, such as in propelling shuttlecraft? That would also explain those cases when warp-capable shuttles behave as if they didn't have antimatter warp cores aboard.
Timo Saloniemi
Stern says an ion cascade mechanism is a promising power generation tech that fails spectacularly in a human test in the 2140s - but the Suliban managed to get it working, and their ships are propelled by it. Stern's inventor calls the system "cascade ion drive", or CID for short (and seems to have a thing for the heroic character El Cid, too). Henry Archer's antimatter system wins out when CID flops.
VOY tells us that polaric ions are a promising energy source that fails spectacularly on an alien planet in "Time and Again". There's also a polaric ion test ban in the Alpha Quadrant.
Scotty in "Spock's Brain" says that a well-working ion drive in a starship is something the Feds could learn a thing or two from. Said drive seems to move the starship at warp speeds.
And the Class F shuttle in "The Menagerie" features ion engine power...
So, perhaps CID is part and parcel of Star Trek, but the Feds only know how to use it in small scale, such as in propelling shuttlecraft? That would also explain those cases when warp-capable shuttles behave as if they didn't have antimatter warp cores aboard.
Timo Saloniemi