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Old January 31st 05, 04:17 PM
David Summers
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10 Ms = 116 days: That is definately achievable for ion engines,
though the power source (dutifully ignored) will be impressive.
Remember, you have to take all the energy with you - interstellar space
is remarkably energy-free.

However, your big problem is propellant. For 1 kN @ 10,000 sec Isp,
you are using about 10 g/s. That means you have 100,000 kg of
propellant in orbit (expensive, probably impossible with the best
propellant, Xenon), and you are only pushing it at 1kN - so you aren't
accelerating very fast.

Where do you want to go?

-David