Re: SSME's
"Brian Thorn" <bthorn64@xxxxxxxxxxxxxx> wrote in message
news:h8dsh3d3v419d0rbd7hvj4d4uvruuo5092@xxxxxxxxxx
Yep. We finally got the damned things working great, and so of course,
now we're throwing them away in three years. Sigh.
That's because expendable liquid fueled stages are the future of NASA launch
vehicles with Ares I and Ares V and the SSME is too expensive to throw away.
Then again, if NASA were to design a reusable liquid fueled rocket stage, it
still wouldn't be economical to do so since the predicted flight rate of
Ares I and Ares V is surely too low to justify development costs, especially
the way NASA is going about development of Ares I and Ares V.
If Ares I and Ares V don't die with the next Administration, then I predict
Ares will eat up so much funding in the decades to come that there won't be
much left for even flags and footprints on the moon, let alone for NASA's
envisioned lunar base.
Jeff
--
"When transportation is cheap, frequent, reliable, and flexible,
everything else becomes easier."
- Jon Goff
.
Relevant Pages
- Re: Ares vs DIRECT
... "Ares III" and the general public will hardly notice. ... DIRECT is not a concept that originated outside of NASA. ... straightforward evolution of one of the concepts studied in NASA's ESAS ... ESAS Report which included the cost figures behind ESAS which was the ...
(sci.space.policy) - Re: Ares vs DIRECT
... "Ares III" and the general public will hardly notice. ... DIRECT is not a concept that originated outside of NASA. ... straightforward evolution of one of the concepts studied in NASA's ESAS ... created by reducing the launcher costs. ...
(sci.space.policy) - Re: Ares vs DIRECT
... "Ares III" and the general public will hardly notice. ... The principal difference is the substitution of RS-68 engines for SSMEs on the core stage (as NASA eventually did with the Ares V). ... The other principal difference is that the ESAS report concluded that LV-24/25 was incapable of carrying out a manned lunar mission with two launches or less while DIRECT has found a way to do it with two. ... Nice and catchy but the name has been used before, also leads to confusion, and it blurs the vehicle's actual origins as ESAS LV-24/25. ...
(sci.space.policy) - Re: Why NASA should focus on the Moon, not Mars - Henry Spencer
... NASA will "need" a huge launch vehicle for Mars missions. ... requirement and Ares I and Ares V can be canned immediately, ... Unfortunately with the current technology ...
(sci.space.policy) - Re: Ares vs DIRECT
... "Ares III" and the general public will hardly notice. ... expound on how you think it should be sold vs how they are trying. ... The principal difference is the substitution of RS-68 engines for SSMEs on the core stage (as NASA eventually did with the Ares V). ... Again not the direct fault of those behind LV-24/25, but when one of your internet frontmen quotes Houbolt in his .sig, it's also kinda inevitable. ...
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