Cameron Dorrough wrote:
"Robert Clark" wrote in message
om...

Nanotube productions methods are advancing quickly. Suppose it is
possible to make a fuel line of carbon nanotube material hundreds of
kilometers long. Could fuel be pumped up to a rocket accelerating to
orbital velocity?

[snipped stuff]

An interesting idea. Assuming that a Space Tether is technically feasible
it should be possible to do it with enormous compressors, but as you point
out, there will be a lot of fuel lost on the way up.

I doubt you can actually pump fuel that fast without having the pipe end up
more massive than the tank due to the pressure it needs to contain at the
lower end.

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