Re: It's In-Line (Shuttle Derived)

Rand Simberg wrote:
> On 24 Jun 2005 12:29:03 -0700, in a place far, far away, "Ed Kyle"
> <edkyle99@xxxxxxxxxxx> made the phosphor on my monitor glow in such a
> way as to indicate that:
>
> >heavy lift
> >will absolutely be required for Mars
> >exploration).
>
> Again, that's an opinion, not a fact.

I think it is a sound opinion, considering that
the Mars reference missions call for 200 to 800 tonnes
of payload to low earth orbit for each Mars mission,
launched during relatively tight launch windows that
open only once every two years (assuming thermal
nuclear propulsion between planets).

"http://ares.jsc.nasa.gov/HumanExplore/Exploration/EXLibrary/docs/MarsRef/addendum/index.htm#Title";

- Ed Kyle

.

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