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#21
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Griffin bye-bye at NASA?
OM wrote in
: The non-NASA gift shop up the road from JSC had a lot of worm items for sale after that which had been marked up a bit because they were now "collector's items". Yay, capitalism!!!! ** Posted from http://www.teranews.com ** |
#22
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Griffin bye-bye at NASA?
Alan Erskine wrote: That's a constant worry; but perhaps that's why they say "...designed for 90 days, but it could be more..." - to ensure that funding isn't lowered on the next programme. I think they are very conservative in regards to their expected lifetimes, just to be on the safe side...although I doubt that they had any idea that the MERs would last this long. The Mars Science Laboratory rover is slated for a two-year operational mission, but its RTG will produce power for at least 14 years: http://en.wikipedia.org/wiki/Mars_Science_Laboratory ....so lord knows how long it will be crawling around on Mars. :-) Pat |
#23
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Griffin bye-bye at NASA?
On Nov 15, 6:41*am, John Doe wrote:
Alan Erskine wrote: Ares 1 is dead? * Would it be realistic at this point in time for NASA to modify the Ares-1 concept to look much more like a delta-4 rocket ? I like the Aries V design (it's about bloody time NASA got off its arse and got a Saturn V class launcher-cancelling the Saturn-V was an extremely foolish and short-sighted decision) and its Aries IV derivative. But I don't like the current Aries I design (in particular its Shuttle derived first stage), but I do think the J-2X powered upper stage is a good idea. But for the first stage, what NASA really needs to do is get sensible, bite the bullet and use a man-rated Delta- IV and/or Atlas-V for a first stage. You'd already be using a proven existing design, and because of the mandated changes to their design and production required for man-rating, it'd drive down the insurance premiums for the Delta-IVs and/or Atlas-Vs used to launch satellites. I mean hell, look at the Russians with their Soyuz booster, it's used both for satellite and Soyuz spacecraft launches; as a result they've made close to two thousand of these launchers-just think of the benefits that mass production would introduce, they are as a result amongst the most reliable launch rockets around. On an another unrelated (and pedantic note): the Delta II and IV are very inaccurate names. Strictly speaking the Delta is the second stage; the first stage is a transformed (basically beyond recognition) Thor stage. They really should be called Long-Tank,Thrust-Augmented, Thor-Delta-II and -IV respectively. |
#24
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Griffin bye-bye at NASA?
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#25
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Griffin bye-bye at NASA?
And what payloads are screaming out for just a huge launcher? Just because you build a big launcher doesn't mean the payloads will magically appear. wrote in message ... On Nov 15, 6:41 am, John Doe wrote: Alan Erskine wrote: Ares 1 is dead? Would it be realistic at this point in time for NASA to modify the Ares-1 concept to look much more like a delta-4 rocket ? I like the Aries V design (it's about bloody time NASA got off its arse and got a Saturn V class launcher-cancelling the Saturn-V was an extremely foolish and short-sighted decision) and its Aries IV derivative. But I don't like the current Aries I design (in particular its Shuttle derived first stage), but I do think the J-2X powered upper stage is a good idea. But for the first stage, what NASA really needs to do is get sensible, bite the bullet and use a man-rated Delta- IV and/or Atlas-V for a first stage. You'd already be using a proven existing design, and because of the mandated changes to their design and production required for man-rating, it'd drive down the insurance premiums for the Delta-IVs and/or Atlas-Vs used to launch satellites. I mean hell, look at the Russians with their Soyuz booster, it's used both for satellite and Soyuz spacecraft launches; as a result they've made close to two thousand of these launchers-just think of the benefits that mass production would introduce, they are as a result amongst the most reliable launch rockets around. On an another unrelated (and pedantic note): the Delta II and IV are very inaccurate names. Strictly speaking the Delta is the second stage; the first stage is a transformed (basically beyond recognition) Thor stage. They really should be called Long-Tank,Thrust-Augmented, Thor-Delta-II and -IV respectively. |
#26
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Griffin bye-bye at NASA?
wrote in message
... I like the Aries V design (it's about bloody time NASA got off its arse and got a Saturn V class launcher-cancelling the Saturn-V was an extremely foolish and short-sighted decision) One word: "Budget" (sometimes, it's a dirty word too). |
#28
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Griffin bye-bye at NASA?
Alan Erskine wrote:
I like the Aries V design You are an ignorant fool. Let me guess you are an Amurkan, no? And when are you going to learn to spell what you admire? |
#29
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Griffin bye-bye at NASA?
"OM" wrote in message
... On Sat, 15 Nov 2008 14:20:14 GMT, "Alan Erskine" wrote: One word: "Budget" (sometimes, it's a dirty word too). ...Alan, you've got to work on your quotes. That reply without the 's made you look as if you were going schitzo :-P OM I didn't notice it. I'll keep an eye on it from now on. |
#30
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Griffin bye-bye at NASA?
bob haller safety advocate wrote in
: I wonder when we'll see that report promised 5 years ago showing that, had NASA held the meetings that protocol said should have been held, but that management said would have been pointless, events surrounding Columbia *would have* been different, as opposed to simply might be. ** Posted from http://www.teranews.com ** |
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