[FPSPACE] And Griffin's true reasons for sizing the Ares 5
dsfportree at hotmail.com
Thu Jul 23 16:04:24 EDT 2009
No sweat. Didn't mean to get all negative on you.
I really want to see humans on the moon and Mars and all over the place. To make it happen, we need to get on the same page with what's reality. Arguing about heavy-lifters at a time when that's not remotely in the cards isn't productive. Ad astra per - what's the Latin for "realistic little steps"?
David S. F. Portree
dsfportree at hotmail.com
dportree at usgs.gov
> From: dstdba at post4.tele.dk
> To: dsfportree at hotmail.com; fpspace at friends-partners.org
> Subject: RE: [FPSPACE] And Griffin's true reasons for sizing the Ares 5
> Date: Thu, 23 Jul 2009 21:54:07 +0200
> -----Original Message-----
> From: David Portree [mailto:dsfportree at hotmail.com]
> Sent: Thursday, July 23, 2009 6:30 AM
> > NASA's current Mars work is an evolutionary follow-on to the Mars
> > work done when Griffin was Associate Administrator for Exploration
> > back in the waning days of SEI. You can track the evolution up
> > through 2001 in my book HUMANS TO MARS, which is available online.
> > Basically, it was based on Code Z work and Mars Direct, and then
> > it got "scrubbed" in a vain attempt to make it affordable.
> I don't in any way dispute your expertise in this area, David!
> It just seems so silly that a sensible approach to the bare
> essentials of a manned Mars trip ( two spacecraft as proposed by
> von Braun and Ley ) should be discarded in favour of a naïve,
> Zubrinite one ( Drake's all-in-one-basket proposal ).
> > While I hate to dump a load of reality on anyone, it's important
> > to get one's mind around the fact that Ares 5 isn't going to get
> > built, and neither will any other heavy-lift rocket for the
> > foreseeable future. Getting into a twist over which heavy-lifter
> > should be built is pretty silly, since none will be built.
> > David S. F. Portree
> I don't count on any specific rocket or any specific decade for
> the trip to Martian skies. What I do count on is the principle
> of permanence in space. Three years ago I wrote to fpspace that
> Oct. 31st, 2000 could mark the beginning of uninterrupted human
> presence in outer space. So far, it's true.
> It is my belief that the day mankind touches down on the surface
> of Mars should mark the beginning of uninterrupted presence there.
> That's why I totally disagree with those plans that aim to visit
> Mars in primitive koala-fashion ( eats shoots and leaves ).
> Jens Kieffer-Olsen
> Slagelse, Denmark
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