Re: Ares vs DIRECT

On Fri, 7 Dec 2007 12:10:47 -0800 (PST), in a place far, far away,
behlingjo@xxxxxxxxx made the phosphor on my monitor glow in such a way
as to indicate that:

On Dec 5, 6:34 pm, simberg.interglo...@xxxxxxxxx (Rand Simberg) wrote:
On Wed, 5 Dec 2007 15:16:36 -0800 (PST), in a place far, far away,
behlin...@xxxxxxxxx made the phosphor on my monitor glow in such a way
as to indicate that:

On Dec 5, 2:41 pm, simberg.interglo...@xxxxxxxxx (Rand Simberg) wrote:

I'm quite familiar with that. I used to work closely with the payload
integration folks in Downey. That was to protect the Orbiter itself,
and had nothing to do with actual man rating, regardless of whether or
not NASA chose to call it that (perhaps you don't understand what "man
rating" actually is?). Even without crew, you'd have done the same
thing on any reusable vehicle, because the vehicle is such a costly
asset.

Horse hockey. It was crew driven by the safety panel. Downey had
nothing to do with it.

This is a complete non sequitur.

I know what manrating is. I worked on the LV side for OSP.

That means nothing in terms of knowing what man rating is.

And what have you done to make you an expert?

I've done analyses on it at Rockwell, as part of Alternate Access and
other programs, and I've read the JSC documentation of what they
currently call human rating for the purposes of OSP and Orion.

But primarily, I've studied the history of it. In modern terms, man
rating is a meaningless scam, and an obsolete relic of Apollo. It
means whatever NASA needs it to mean to justify their political
decisions (as demonstrated by the fact that Shuttle was never man
rated).

If the vehicle is reusable, man rating is superfluous--you can't
afford to lose the vehicle, regardless of whether crew is aboard or
not. For an expendable, all it means is that the vehicle will give
you enough warning before it goes south to allow you to escape. It
has very little to do with reliability.
.

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