Charles Buckley ) wrote:
: David M. Palmer wrote:
: In article , Max Beerbohm
: wrote:
:
:
:
: Seriously, if you are going to say that there is no reason not to do a
: Hubble visit, you need to address the safety issue - as some on this
: group have done.
:
: The article above is poorly researched because of this.
:
:
: The expected risk cost is ~0.1 lives and 0.015 shuttles (assuming a
: 1/70 chance of disaster with each shuttle mission not to ISS).
:

: Recalculate for 1/50 That is the current safety rating.


: It's not a safety issue. It is quite a bit of a project management
: issue. The 2007 launch to Hubble would be right in the middle of
: ISS flights. They would have to take a shuttle offline and do
: a one-off flight to another destination. If they go with a
: safety net of a spare shuttle, then you have created a gap of
: a couple months when ISS construction and processing is interrupted.

So ISS will get completed two months early and THAT is why Hubble can't
be serviced? Two months? Real leadership would complete ISS and fix the
Hubble. Partisan BS has Texas getting its project done whereas the ongoing
Maryland project can go to hell!

: It's also a 40% chance of vehicle loss over the remaining number of
: flights, to where no one individual flight is more risky than any
: other, it is the aggregate total that is the issue. Without ISS,
: shuttle would be permamently grounded already. There is zero push
: to get it back into service for anything else.

No, fix Hubble and then consider grounding the shuttle if you think ISS
isn't worth it. We KNOW that Hubble has value!

: The deaths are equivalent to ~12 million passenger miles of automotive
: travel, or every member of the American Astronomical Society driving
: 2000 miles, or every U.S. amateur astronomer driving about a dozen
: miles, or every person who has ever looked at a Hubble picture and
: thought 'wow! that's cool' driving a few hundred meters.
:
: Or to put it another way, it's equivalent to each of the seven
: astronauts who decide that they are willing to risk a Shuttle flight to
: fix Hubble doing so.
:
: Now that the safety issue has been addressed (although not compared to
: that of the dozens of planned trips to the ISS, with only a marginal
: increase in safety per flight) let's go and fix it.
: