From NEO to GEO --- an SPS scenario Forum: SSI-List
Thread: From NEO to GEO --- an SPS scenario
# 15298 byrmenich@... on July 6, 2001, 9:50 a.m.
Member since 2022-08-22
Consider the delta-V required to go from LEO to L4 or L5 with Lunar assist.
Is this more or less than the delta-V required to escape Earth completely
from LEO?
Charles
07/06/01
10:28 AM
Please
respond to
ssi_list
>
> In your scenario, the construction/machining would presumably be done
> in HEO (GEO or above) and tools would be shipped up from LEO. But
> LEO to GEO delta-V is already more than Earth escape delta-V. So I
> don't perceive a great disadvantage to shipping the
> construction/machining tools directly to the NEO instead.
>
The best place to do the manufacturing would be the Earth-Moon L-4 or
L-5 libration orbits.
It takes a lot less energy to get there than to GEO if lunar flyby is
used.
The finished product (SPS) can be shipped from L-4/5 to GEO fairly
cheaply.